Start: 11/17/2024 10:00 AM EST End: 12/8/2024 9:00 PM EST
Tiger Woods Single-Signed OAL Baseball 9 (JSA)
Bids: 0 Opening Bid: $500 Status: Closed
1864 Best Fielding In The Union Trophy Ball (Rare & Important)
Bids: 0 Opening Bid: $2,500 Status: Closed
1939 Inaugural Hall of Fame First Day Cover Signed By Cobb, Young, Foxx, Speaker, Ott, Hornsby & Others (PSA/DNA NM 7)
Bids: 0 Opening Bid: $5,000 Status: Closed
1895 Cleveland Spiders World Champions Imperial Cabinet Photograph with Cy Young (Exceedingly Rare)
7/1/1949 Mickey Mantle Signed Independence Yankees Pre-Rookie Check (PSA/DNA • Earliest Known Check)
1950-55 Ted Williams Boston Red Sox Game-Used Bat (PSA GU 9.5)
1956 Ted Williams All-Star Game-Used & Autographed Bat (PSA GU 9.5)
Circa 1968 Johnny Bench Cincinnati Reds Rookie Era Game-Used Bat (PSA/DNA GU 9.5)
1991-93 George Brett Kansas City Royals Game-Used Bat (PSA GU 10)
1961-63 Roberto Clemente Pittsburgh Pirates Game-Used Bat (PSA GU 8)
2001 Barry Bonds SF Giants Game-Used Bat (PSA GU 9.5 • Bonds Holo • 73 HR Season)
2012 Derek Jeter NY Yankees Game-Used & Autographed Bat (PSA GU 9.5 • Steiner • JSA)
1986 Don Mattingly NY Yankees Game-Used & Autographed Bat (PSA GU 8.5 • JSA)
1979 Lou Brock St. Louis Cardinals Game-Used Bat (PSA GU 9 • Final Season)
1979 Lou Brock MLB All-Star Game Bat (PSA • MEARS A8 • Final Season)
Early 1990s Ken Griffey Jr. Game-Used "C.M.B 24" Bat with Wristband (PSA)
Bids: 0 Opening Bid: $1,000 Status: Closed
1987-88 Cal Ripken Jr. Baltimore Orioles Game-Used & Autographed Bat (PSA GU 9.5 • JSA)
Early 1990s Tony Gwynn SD Padres Game-Used & Autographed Bat (PSA GU 10 • JSA)
1996 Alex Rodriguez Seattle Mariners Game-Used & Signed Bat (PSA/DNA GU 8.5)
1999 Tom Glavine Atlanta Braves World Series Game-Ready & Autographed Bat (PSA)
Bids: 0 Opening Bid: $250 Status: Closed
1991 Tom Glavine Atlanta Braves Game-Used & Autographed Bat (PSA GU9)
8/19/2016 David Ortiz Boston Red Sox Home Run #531 Game-Used & Autographed Bat (Photo-Matched • Fanatics & MLB)
1975 Robin Yount Milwaukee Brewers Game-Used & Autographed Bat (PSA GU 9 • JSA)
1971 Reggie Jackson Oakland Athletics Game-Used & Autographed Bat (PSA GU 9 • JSA)
2005 Chipper Jones Atlanta Braves Game-Used & Autographed Bat (PSA GU 10)
1991 Eddie Murray LA Dodgers Game-Used & Autographed Bat (PSA GU 9.5)
1977-79 Thurman Munson NY Yankees Game-Used Bat (PSA/DNA • Also Used By Graig Nettles)
2024 Mookie Betts LA Dodgers 2x Home Run Game-Used Bat (MLB Auth • Photo-Matched To Career HRs 261 & 262)
1927/28 NY Yankees ONL Team-Signed Baseball Including Grover Cleveland Alexander (Beckett)
1934 Tour Of Japan Team-Signed Baseball With Ruth, Gehrig, Foxx, Berg & Others (Beckett)
1939 Boston Red Sox Team-Signed Baseball (JSA • Rookie Williams, Foxx & Grove)
Babe Ruth Single-Signed ONL Baseball (Beckett)
1934 St. Louis Cardinals 'Gas House Gang' Team-Signed Baseball (Beckett • Championship Season)
1948 Brooklyn Dodgers Team-Signed ONL Baseball With Jackie & Campy (JSA)
1953 NY Yankees Team Signed Official Baseball With Early Mantle (JSA • World Series Champions)
1951 NY Yankees Team-Signed Baseball (Championship Season • Rookie Mantle)
3/22/1962 Mets Vs. Yankees Spring Training Mets Team Signed Baseball (JSA • Inaugural Season • 1st Ever Matchup)
1930s Walter Johnson Signed & Inscribed Photograph (PSA/DNA)
9/15/1910 John J. McGraw Handwritten & Signed Letter (PSA/DNA)
1955 Pittsburgh Pirates Team-Signed Baseball With Roberto Clemente Rookie (PSA NM-MT 8 • Vern Law Collection)
1991 Kirby Puckett Minnesota Twins World Series Championship Ring Salesman Sample
8/1/1979 Thurman Munson Final Game Ticket Stubs 8/6/1979 Thurman Munson Funeral Day Game Ticket Stubs (4)
1993 Paul Molitor Toronto Blue Jays Rolex Geneve Watch (Molitor LOA)
1965 Minnesota Twins American League Championship Salesman's Sample Ring (Heritage)
1939 Joe DiMaggio PLAYBALL Card (SGC VG/EX 4)
Vintage Framed Courtley Babe Ruth 'Called Shot' Advertisement (Rare)
Oversized Framed Willie Mays Minneapolis Millers Signed Photo (Huge Autograph)
1996 NY Yankees Championship Pendant In Original Balfour Box (Team Mental Skills Coach)
Babe Ruth & Lou Gehrig Signed & Inscribed OAL Baseball (BECKETT)
1933 Goudey Babe Ruth #144 (PSA 2)
Babe Ruth Autographed Louisville Slugger Baseball Bat (JSA)
9/28/2014 Derek Jeter's Final Career Hit Game-Used 1st Base (The Last Base Jeter Touched - RBI Single To End Career • MLB Auth)
2017 Shohei Ohtani Nippon-Ham Fighters Japan Game-Used Jersey (Earliest Known)
2017 Shohei Ohtani Nippon-Ham Fighters Japan Player-Worn Jacket
2001 Hideki Matsui Japanese Yomiuri Giants Game-Used Jersey
2000 Ichiro Japan Orix Game-Used Jersey (Rare)
1970 Lou Brock St. Louis Cardinals Game-Used Flannel Uniform (2)
5/10/1974 Lou Brock St. Louis Cardinals Game-Used & Autographed Jersey (Single Season Stolen Base Record 104 & 105 • JSA)
Late 1960s Lou Brock St. Louis Cardinals Game-Used & Autographed Glove (PSA/DNA • Brock Family Provenance • JT Sports • JSA)
1983 Dave Winfield NY Yankees Game-Used & Autographed Jersey (MEARS A10)
2001 Ichiro Seattle Mariners Game-Used Jersey (AL RoY & MVP Season)
1995 Greg Maddux Atlanta Braves Game-Used Jersey (WS & Cy Young Season)
1992 Ozzie Smith St. Louis Cardinals Game-Used Jersey (Cards 100th Anniversary Patch)
1993 Jack Morris Toronto Blue Jays World Series Trophy (Morris LOA)
1995 Hideo Nomo LA Dodgers Rookie Game-Used & Autographed Jersey (ROY Season • Henderson LOA)
1977 Yogi Berra NY Yankees Coach-Worn Jersey (Championship Season)
9/22/18 Bryce Harper Washington Nationals Game-Used Helmet - Slammed in Dugout after Flyout (Photo-Matched)
1969 Bert Campaneris Oakland A's Flannel Vest (Sourced from Organization)
1992 Carlton Fisk Chicago White Sox Game-Used Jersey
1987 Mike Schmidt Philadelphia Phillies Game-Used & Signed Jersey (JSA • 500 Home Run Club Season)
1996 Cal Ripken Jr. Baltimore Orioles Game-Used Jersey
2002 Albert Pujols St. Louis Cardinals Game-Used Jersey (DK Patch)
1975 Keith Hernandez St. Louis Cardinals Game-Used & Autographed Rookie Jersey (JSA • Rare)
2005 Vladimir Guerrero Sr. Anaheim Angels Game-Used Jersey (Photo-Matched To 3 Games)
1996 Ken Griffey Jr. Seattle Mariners Game-Used Jersey
2004 Derek Lowe Boston Red Sox World Series Championship Ring With Presentation Box (MINT • Family LOA)
1963 Roberto Clemente Pittsburgh Pirates Game-Used Fielders Glove (PSA/DNA • Gifted To Pirate Teammate Matty Alou)
1978-79 Jim "Catfish" Hunter NY Yankees Game-Used & Autographed Jersey (MEARS A10 • JSA)
1988 Barry Bonds Pittsburgh Pirates Game-Used & Autographed Uniform (2)(JSA)
1994 Rickey Henderson Oakland A's Game-Used Jersey
1964 Roger Maris NY Yankees Game-Used Glove (PSA/DNA LOA • World Series Season)
2006 Johan Santana Minnesota Twins Game-Used & Autographed Glove (Cy Young & Triple Crown Season • PSA/DNA)
6/3/2007 Johan Santana Minnesota Twins Game-Used Jersey (Twins LOA • Photo-Matched)
1993 Robin Yount Milwaukee Brewers Game-Used & Autographed Jersey (JSA • Final Season)
1978 Dave Kingman Chicago Cubs Game-Used Home Jersey (Photo-Matched & Graded 10)
10/3/2014 Mike Trout LA Angels Of Anaheim Postseason Game-Used Home Jersey (Photo-Matched • MLB Auth • MVP Season • Only Postseason Appearance)
Early 1970s Willie Mays SF Giants Game-Worn Turf Shoes
1972 Willie Mays NY Mets Game-Used Road Pants (Repair • MEARS)
1974 Tug McGraw NY Mets Game-Used & Autographed Jersey With Autographed Undershirt & Stirrups (3)(PSA)
1973 Cito Gaston SD Padres Game-Used & Autographed Jersey (Rare Style • Heritage • BECKETT)
1986 Alan Trammell Detroit Tigers Game-Used Jersey
4/6/2015 Alex Rodriguez NY Yankees Game-Used Opening Day Home Jersey (Photo-Matched • MLB Auth & Yankee Steiner)
1997 Mark McGwire Oakland A's Game-Used Jersey (HR Champ)
1987 Roger Clemens Boston Red Sox Game-Used & Autographed Road Jersey (Cy Young Season)
1977 Dick Allen 'WAMPUM' Oakland A's Game-Used & Autographed Jersey (JSA • Final Season)
1970 Catfish Hunter Oakland A's Game-Used & Autographed Flannel Vest (JSA • Great Wear)
9/17/2021 Chris Sale Boston Red Sox Game-Used & Autographed Jersey (MLB)
8/14/2007 John Smoltz Atlanta Braves Game-Used & Autographed Jersey (MLB Auth)
8/14/2012 Chipper Jones Atlanta Braves Game-Used & Autographed Jersey (MLB Auth)
10/3/2012 Evan Longoria Tampa Bay Rays 3 Home Run Game-Used & Autographed Jersey, Bat, Helmet & Batting Gloves (3)(MLB Auth • Player Inscribed)
1976 Johnny Bench Cincinnati Reds Game-Used Jersey (World Series MVP Season)
Circa 1948 Bill McKechnie Cleveland Indians Coach-Worn Flannel Jersey (MEARS)
Ted Williams Boston Red Sox Game-Used Cap
1930s Denny Galehouse Cleveland Indians Game-Used Cap (Name Stitched In)
Circa 1939 George Selkirk NY Yankees Game-Used Cap (Name Stitched In)
1960s Mickey Mantle NY Yankees Game-Used Undershirt (Linda Howard Provenance)
Circa 1970 Hank Aaron Atlanta Braves Player-Worn Flip Sunglasses (Sourced From Braves Security w/ Badge)
Circa 1973 Hank Aaron Atlanta Braves Game-Used & Autographed Helmet (Lelands - Dennis Goldstein Collection • JSA)
1961 Rocky Colavito Detroit Tigers Game-Used Flannel Jersey
1988 Don Mattingly NY Yankees Game-Used Jersey (Graded 10 • Excellent Wear)
2001 Derek Jeter NY Yankees Game-Used & Autographed 'Jumpman' Cleats (Photo-Matched • Jeter LOA • JSA)
10/12/2012 Derek Jeter NY Yankees ALDS Game-Used Jersey (Photo-Matched • MLB Auth • Unwashed)
1961 Bill Mazeroski Pittsburgh Pirates Game-Used & Autographed Flannel Vest (Rare • JSA)
1951 Monte Irvin NY Giants Game-Used & Autographed Flannel (MEARS • JSA • Shot Heard Round The World & World Series Season)
1972 Juan Marichal SF Giants Game-Used Home Autographed Jersey (Graded 10 • Rare 1st Year Knits • JSA)
1970 Jim Palmer Baltimore Orioles Game-Used & Autographed Flannel (JSA • Championship Season)
Early 1930s Lou Gehrig NY Yankees Game-Used Pants (Yankee Employee Provenance)
Bids: 0 Opening Bid: $10,000 Status: Closed
1968 Nolan Ryan NY Mets Game-Used Rookie Flannel Jersey (Photo-Matched & Graded 10 • SIA & Grob)
1971 Willie Mays SF Giants Game-Used Flannel Uniform (2)(Photo-Matched To Multiple Games & Graded 10)
Willie Mays Signed & Inscribed Baseball (JSA)
Bids: 0 Opening Bid: $50 Status: Closed
1994 Michael Jordan Birmingham Barons Game-Used Jersey
1999 Greg Maddux Atlanta Braves Game-Used Jersey
2000 Cal Ripken Jr. Baltimore Orioles Game-Used Jersey
2014 Michael Abreu Nippon-Ham Fighters Japan Game-Used Jersey
2005 Dustin Pedroia Paw Sox Minor League Game-Used Jersey
1965 Bob Duliba Boston Red Sox Game-Used Jersey
Bids: 0 Opening Bid: $200 Status: Closed
1980 Jerry Remy Boston Red Sox Game-Used & Autographed Jersey (BECKETT)
1987 Mark McGwire Donruss & Fleer PSA Graded Cards (2)
1960 Topps Mickey Mantle #350 Card (PSA 3)
Bids: 0 Opening Bid: $100 Status: Closed
1995 Atlanta Braves Team Signed Helmet (24 Sigs)
2024 Fernando Tatis Jr. SD Padres Spring Training Game-Used & Autographed Bat
2022 Salvador Perez KC Royals Game-Used Bat
Ken Griffey Jr. Seattle Mariners Pro Model Bat
2006 Manny Ramirez Boston Red Sox Game-Issued Glove (PSA/DNA)
7/6/1963 Lefty O'Doul Signed and Personalized Little League Baseball
Early 1950s Negro American League Game-Used Baseball
Glenn L. Martin, Clark Griffith & Others Signed Game-Used Reach Baseball
September 1958 NY Yankees Personalized Signed and Mounted Baseballs (Mantle, Berra, Stengel)
2018 Kris Bryant Chicago Cubs Game-Used & Autographed Bat
1996 Luis Polonia Atlanta Atlanta Braves World Series Game-Used & Autographed Jersey
Sandy Koufax 2x Autographed Book
Mickey Mantle 'My Favorite Summer 1956' Autographed Book (863/1956)
1933 'Who's Who in Major League Baseball'
Christy Mathewson 'First Base, Second Base, Pitcher' & Deacon Scott 'Third Base'
Signed Copy of 'Ted Williams' by Arthur Sampson
Fergie Jenkins Signed & Inscribed Wrigley Field Seat-Back
6/8/1992 Roger Clemens Reebok Player Sample Cleats (Sourced from Reebok Sales Manager - Reebok Custom Tagging)
1989 Upper Deck The Collector's Choice Cards Factory Sealed Complete Sets (Ken Griffey Jr. Rookie Card) (2)
1970 Topps Yankees Rookies (Thurman Munson/Dave McDonald) #189 Card (PSA 5)
Bids: 0 Opening Bid: $25 Status: Closed
2003 Greg Maddux Atlanta Braves Spring Training Game-Used Jersey
2001 Tony Gwynn SD Padres Game-Used Jersey (Final Season)
1994 Michael Jordan Birmingham Barons Spring Training Game-Used Jersey
Early 2000's Jorge Posada NY Yankees Game-Used & Autographed Bat
1993 MLB All Star Ring
Ted Williams ".406" Signed & Inscribed Baseball LE 274/1941 (UDA)
1951 World Champion NY Yankees Team-Signed Baseball (Rookie Mantle • PSA)
Walt Alston's MLB Lifetime Pass (Alston Family LOP)
1972 Roberto Clemente Final Game in Pittsburgh Ticket Stub (PSA Authentic)
1957-59 Art Ceccarelli/George Bamberger Baltimore Orioles Game-Used Jersey
Circa 1982 Bob Welch LA Dodgers Game-Used & Autographed Jersey
1978 Carl Yastrzemski Boston Red Sox Team-Issued Jersey
1969 Phil Roof Oakland A's Game-Used Flannel Vest (Sourced from Organization)
Late 1960s NY Yankees Team-Issued ST Flannel Jersey Attributed to Ruben Amaro
2000 Alex Rodriguez Seattle Mariners Game-Used Jersey
1997 Tony Gwynn SD Padres Game-Used Jersey
2001 Craig Biggio Houston Astros Game-Used Jersey (9/11 Patch)
1981 Mike Flannagan Baltimore Orioles Game-Used & Autographed Jersey
1963 Washington Senators Team Signed OAL Baseball (27 Sigs • Hodges First Season As MGR)
Vladimir Guerrero Autographed Framed Display
Derek Jeter Signed Timeline Framed Display (STEINER • 128/500)
Duke Snider Autographed Bat & Framed Display (PSA/DNA)(2)
1974 Topps Tom Seaver #80 PSA NM 7 Card
1965 Topps Mets Rookie Stars #533 PSA NM-MT 8 & 1965 Topps C. Jones/T. Parsons GMA 3 Cards (2)
1961-1999 Topps Minnesota Twins Complete Card Set (All Players Included)
George Steinbrenner Autographed Baseball & Yankees TLS (JSA)
MLB All-Century Book Signed by Aaron & Mays (JSA)
Chicago Cubs Autographed Seat Backs Signed By Santo, Jenkins, Banks & Maddux (4)
Ichiro Single-Signed OML Baseball & Signed Bat (2) (JSA)
Willie Mays Signed & Framed 'The Catch' Black & White Photo (JSA)
Willie Mays Autographed Personal Model Bat (JSA)
Ryne Sandberg Chicago Cubs Signed Mitchell & Ness Jersey (Cubs & JSA)
Bob Feller Signed STAT Cleveland Indians Jersey & Baseball (2) (PSA & JSA)
Stan Musial Signed Base & Baseball Art (2)
Jerry Royster Atlanta Atlanta Braves Player-Worn & Autographed Dugout Jacket
Tom Glavine Atlanta Braves Player-Worn & Autographed Dugout Jacket
1999 Mike Remlinger Atlanta Braves W.S. Game-Used Jersey (W.S. & Hank Aaron 715 Patches)
4/16/13 Juan Francisco Atlanta Braves Jackie Robinson Day Game-Used Jersey (2HR • MLB Auth)
Early 1980s Brook Jacoby Atlanta Braves Spring Training BP Pullover
4/27/2013 Justin Upton Atlanta Braves Game-Used TBC Homerun Uniform (2) (MLB Auth)
1983 Bob Walk Atlanta Braves Game-Used & Autographed Jersey (GA 250 Patch)
2005 Julio Franco Atlanta Braves Game-Used Alternate Jersey
1976 Andy Messersmith Atlanta Braves Game-Used Jersey (NL Centennial Patch)
9/3/2013 Evan Gattis Atlanta Braves Game-Used & Autographed Rookie Jersey (HR #16 • MLB Auth)
9/25/2017 Ron "SWEET" Washington Atlanta Braves Coach-Worn Players Weekend Jersey (MLB Auth)
1983 Bob Watson Atlanta Braves Game-Used & Autographed Jersey & Cap (2)
4/14/2017 Brandon Phillips Atlanta Braves Game-Used (Inaugural Season Patch • MLB Auth)
1987 Graig Nettles Atlanta Braves Game-Used & Autographed Jersey
1978 Rick Camp Atlanta Braves Game-Used & Autographed Jersey
1985 Johnny Sain Atlanta Braves Coach-Worn Jersey & Cap
1986 Ken Griffey Sr. Atlanta Braves Game-Used Jersey & Game-Used / Autographed Batting Helmet
1980 Al Hrabosky Atlanta Braves Game-Used Uniform (2)
2004 Andruw Jones Atlanta Braves TBC Game-Used & Autographed Cap (Jones Holo)
1999 Chipper Jones Atlanta Braves World Series Game-Used & Autographed Cap
Tim Hudson, Jason Heyward, Brian Jordan & Brian McCann Atlanta Braves Game-Used Caps (4)
Freddie Freeman Game-Used & Autographed 2013 Playoffs Cap & Rookie Game-Used & Autographed Batting Gloves (PSA)
4/14/2017 & 4/16/2017 Brandon Phillips Atlanta Braves Game-Used Helmet (MLB Auth)
Steve Bedrosian Atlanta Braves Game-Used & Autographed Glove
2005 Brian McCann Game-Used & Autographed Full Catchers Gear (Rookie Season)
2002 Andruw Jones Pro-Model NL All-Star Team Signed Bat
1993 Juan Gonzalez All-Star Game Issued Bat
John Smoltz Atlanta Braves Game-Used & Autographed Bat (JSA)
9/17/2013 Freddie Freeman Atlanta Braves Game-Used 100th RBI ONL Baseball (MLB Auth)
1936 NY Yankees WS Champs Team Signed Baseball (Gehrig & DiMaggio)
2022 Houston Astros World Series Ring Presented to Ballpark Employee
1934 Detroit Tigers A.L. Championship Pennant in Cane
Scott Rolen Philadelphia Phillies Game-Used & Autographed Jersey
2003 Scott Rolen St. Louis Cardinals Game-Used & Autographed Jersey & Undershirt (2)(Great Wear)
Early 2000s Jim Edmonds St. Louis Cardinals Game-Used & Autographed Jersey
Circa 1990 Don Mattingly NY Yankees Game-Used & Autographed Cap
1970s Ted Simmons St. Louis Cardinals Game-Used Bats (2)(PSA)
Early 2000s Jim Edmonds St. Louis Cardinals Game-Used & Autographed Bat (PSA)
2002-07 Scott Rolen St. Louis Cardinals Game-Used Bat (PSA GU 9 • Rolen Charity Brochure)
Autographed HOF Commemorative Bat
1978 Ted Simmons St. Louis Cardinals Game-Issued Jersey
Roger Maris Autographed Magazine Clipping
1958 Topps Orlando Cepeda #343 Card (PSA 4)
Glenn Burke Game-Used Collection (5)(MLBs First Openly Gay Player)
2000 Derek Jeter NY Yankees Game-Used Jersey (Championship Season • STEINER)
2016 Mike Trout Anaheim Angels Game-Used & Autographed Bat (PSA GU 8 • MVP • Rare 'Be Brave' Inscription)
Paul Goldschmidt Game-Used & Autographed Bat
2005 Roberto Alomar Tampa Bay Rays Spring Training Game-Used & Autographed Helmet
1981/85 Baseball HOF Commemorative Bats LE of 500 (2)
St. Louis Cardinals Championship Commemorative Bats (3)
2016-17 Carmelo Anthony NY Knicks Game-Used & Autographed Jersey
1972 Bert Campaneris Oakland A's Game-Used Pants (Championship Season)
Early 1930s Len Koenecke Gme-Used Side Written Bat (PSA)
Shohei Ohtani Single-Signed OML Baseball (JSA)
Hal McRae 2007 NL All-Star Game Coach-Worn & Autographed Jersey
2002 Roberto Alomar NY Mets Japan Series Game-Used Jersey & Helmet (2)
2015 Juan Uribe NY Mets World Series Game-Used & Autographed Jersey
Circa 1989 Roberto Alomar San Diego Padres Rookie Era Game-Used & Autographed Helmet
2016 Aroldis Chapman Wrigley Field Game-Used & Autographed Pitching Rubber
Circa 1997 Roberto Alomar Baltimore Orioles Game-Used & Autographed Cleats
Brandon Crawford SF Giants Game-Used & Autographed Bat
Ian Happ Chicago Cubs Game-Used Bat
2017 Xander Bogaerts Boston Red Sox Game-Used & Autographed Bat
2017 Michael Brantley Cleveland Indians Game-Used & Autographed Bat
2018 Nelson Cruz Seattle Mariners Game-Used & Autographed Bat
2015 Chris Sale Chicago White Sox Game-Used Bat
2018 Salvador Perez KC Royals Game-Used Bat