Collectible football jerseys are valued based on several factors: whether they were worn and by which player, whether they were autographed, and what era they're from. A jersey autographed by a famous player and a worn jersey autographed by that player are two completely different things to collectors. Many players autographed limited numbers of promotional jerseys, which were often sold with a certificate of authenticity.

The other big factor is era, either for the team, or within the individual player's career. Numbers no longer in use by a football team are more valuable, especially those from the team's infancy or a big winning season. For individual players, jerseys from college years are often sought-after.

Best of the Web (“Hall of Fame”)

Vintage Football Card Gallery

Vintage Football Card Gallery

This great database of pro and collegiate football cards from the 1950s and 1960s offers scanned images of cards fo… [read review or visit site]

Other Great Reference Sites

Most watched eBay auctions    

Walter Payton Signed /autograph Chicago Bears Jersey 5 Inscriptions Wp Steiner 2012 Tim Tebow Team Issued #5 Nike Away/white New England Patriots JerseySeattle Seahawks #39 Brandon Browner Game Used Nike Jersey 8/23/13 Size 40 CoaXl 1998 Adidas Zidane France Soccer Jersey Juventus Real Madrid Football ShirtAndrew Luck Indianapolis Colts Nfl Signed Autographed Jersey Ga Gai CoaBrett Favre Signed Autographed Jersey Number Green Bay Packers Framed 13x19 Holo 2014 Immaculate Davante Adams 1/1 Full Nike Jersey Tag Rookie Packers!Tom Brady Autographed Jersey1986 Mike Wilcher Los Angeles Rams Nfl Football Game Worn Football Jersey..mearsBrett Favre Framed Autographed Packers Jersey With Favre CoaPeyton Manning Signed 2 Inscription Elite Orange Jersey Fanatics Le 18Nwt Ndamukong Suh #93 Nike Elite Xl Men's Jersey Nfl Miami Dolphins Nike Zlatan Ibrahimovic Psg Football Match Player Issue Worn Jersey Shirt XlJoe Montana Autographed San Francisco 49ers Jersey W/ Montana Personal HologramJoe Montana Autographed Signed 49ers Red Stat Jersey Jsa WitnessNew With Tags Nike Seattle Seahawks 12th Man Fan Jersey White Men's Size XxlNwt Nike Pittsburgh Steelers Franco Harris Nfl Football Jersey Mens 2xl $100.00Jerry Rice Signed San Francisco 49ers Red Stat Custom Jersey Gtsm Coa& Rice Holo2009 New England Patriots Game Worn Jerod Mayo Jersey Used CoaHines Ward Framed Autographed Steelers Jersey With Jsa CoaJoe Montana Signed San Francisco 49ers Red Stat Pro Style Jersey Jsa W852152Jerome Bettis Autographed Signed Stats Jersey Pittsburgh Steelers Jsa Peyton Manning Autographed Tennessee Volunteers Jersey W/ Steiner HologramNy Giants Game Used Worn 2008 Brown Home Jersey Nfl RareRare Retro West Ham 1982 Home Football Shirt Jersey Hammers MediumWalter Payton Dan Hampton 40 Team Quad Bears Jersey Patch Sp Jared Allen PeppersVintage Adidas Germany Away Shirt Jersey Football Trikot World Cup 1994/96 MTroy Aikman Framed Autographed Cowboys Jersey With Jsa CoaBrett Favre Autographed Signed Packers Green Jersey Sb Xxxi Champs Farve HoloNwt Ndamukong Suh #93 Nike Elite Xl Men's Jersey Nfl Miami Dolphins Xl 2001 Nike Boca Juniors Soccer Jersey Argentina Shirt Mexico Usa Jrs FootballTony Dorsett Framed Autographed Cowboys Jersey With Jsa CoaL Vtg 01 Nike Rivaldo Barcelona Soccer Jersey Football Shirt Messi Neymar BrazilBo Jackson Framed Autographed Auburn Jersey With Jsa CoaFramed Ronnie Lott Autographed Signed San Francisco 49ers Stat Jersey Jsa Coa1969 Los Angeles Rams Deacon Jones Mitchell & Ness Football Jersey Sz 52Tom Rathman Signed San Francisco 49ers Custom Jersey Gtsm Holo & Rathman CoaNwt Rob Gronkowski #87 Nike Elite Xl Men's Jersey Nfl New England Patriots Peyton Manning Signed 2 Inscription Elite White Jersey Fanatics Le 18Framed Brett Keisel Autographed Signed Pittsburgh Steelers Jersey Jsa Coa1994 Burnie Legette Game #35 Game Worn Royal/home New England Patriots JerseyDan Marino Autographed Miami Dolphins Jersey W/ Marino Personal HologramTim Tebow Eagles JerseyDemarco Murray Autographed Signed Eagles White Jersey Jsa WitnessBrett Favre Signed Jersey Official Favre Hologram & Coa Autograph Gb Packers2005 Bethel Johnson #81 Team Issued New England Patriots Jersey Sb Xxxix PatchLiverpool Match Worn/issued Football Shirt Jersey Lallana2012 Washington Redskins Red Game Worn/used Jersey #77 Jam Nfl Official JerseyDeion Sanders Framed Autographed Cowboys Jersey With Jsa CoaFramed Jim Mcmahon Autographed Signed Chicago Bears Jersey Jsa CoaPeyton Manning Signed Autographed Jersey Number Denver Broncos Mvp 18x24 Gai GaBart Starr Autographed Signed Jersey Number 8x10 4x6 Green Bay Packers Framed1994 J. Davis Dallas Cowboys Nfl Football Game Worn Football Jersey..mears LoaJoe Montana Framed Autographed 49ers Jersey With Jsa CoaNy Giants Game Used Worn David Tyree 2006 Home Jersey Rare Nfl Thierry Henry Arsenal Football Soccer Shirt Jersey MediumAntonio Brown Autographed Signed Bumblebee Jersey Pittsburgh Steelers Jsa Tom Brady Autographed / Signed Framed Patriots Photo Nfl Throwback JerseyBo Jackson Autographed Signed Auburn Tigers Blue Jersey Jsa WitnessIndiana University 2012 Game Used Home Football Jersey Adidas Tech Fit