Welcome To 100% Authentic
100% Authentic is a professional authentication service specializing in game used sports collectibles. Our mission is to provide the absolute best authentication in the industry ,bar none!
The 100% Authentication Team is composed of the best authenticators in the industry. All 100% Authentic Certificates issued are listed on this site and are organized by categories and tags for easy browsing.
If you have any items you would like us to authenticate or have any questions please send an Authentication Request or give us a call at 800-430-0667
Sparky Anderson Signed/Autographed “The Main Spark” 1st Edition Book – 1978
Certificate No: 57036
Sparky Anderson signed / autographed "The Main Spark - Sparky Anderson & The Cincinnati Reds". This is a 1978, 239 Page, 1st Edition Hardback book that details the story behind the sucess of the 1970's Cincinnati Reds baseball team as told by the team's Manager Sparky Anderson. The hard bound book comes with the original dust jacket and was published by Doubleday & Company, Inc., Garden City, New York.
In good condition the book's dust jacket is intact, the binding is tight, the boards are clean and there is no signs of wear to the pages (Very clean).
Authentication: 100% Authentic Team
1979 Maury Wills Signed / Autographed “The All Star Story of the Dodgers” Comic Book
Certificate No: 57144
Maury Wills Signed/Autographed 1979 Stadium Comics "The All-Star Story of the Dodgers" Comic book.
Maury boldly signed the front cover in blue sharpie across his legs. The comic is in EX+/NM condition. All the pages are off white with color artwork of many Dodger Hall of Famers.
Authentication: 100% Authentic Team
Manny Ramirez Autographed 16×20 Photograph
Certificate No: 57571
Manny Ramirez autographed 16 x 20 photograph
Mint Condition
Elite Sports Marketing 2007
Authentication: 100% Authentic Team
Collection of 8 Bears Signed Hall of Fame Cards (Incl. Musso, Butkus, Connor, Singletary, Jones, Atkins, Sayers and Ditka) – From O.J. Simpson’s Former Signing Agent
Certificate No: 57473
Presented is a collection of NFL Hall of Fame illustration cards signed by the respected HOFer within the limited edition signature series. Each card designed by different artists measures 4x6 and is part of a 2500 LE series.
Presented are 8 signed Bears HOF cards including: George Musso, Dick Butkus, George Connor, Mike Singletary, Stan Jones, Doug Atkins, Gale Sayers and Mike Ditka. They are each numbered 760/2500 in the series.
These cards originate from O.J. Simpson's former signing agent. They were given to Bruce Fromong, one of the men who conducted signings with Simpson. Fromong was one of the men held up at Palace Station in Vegas during O.J.'s infamous incident. A letter from Fromong will attend.
Authentication: 100% Authentic Team
St. Louis Rams – Marshall Faulk Signed FS Riddell Helmet w/2000 NFL MVP Inscription
Certificate No: 57951
This auction is for a Marshall Faulk St Louis Rams Full Size Replica Riddell Helmet w/2000 Nfl Mvp inscription. This helmet was signed at a private signing several years ago.
Authentication: 100% Authentic Team
1973 Phillies Team-Signed Ball w/Ken Brett, Steve Carlton From the Gehring Collection
Certificate No: 57382
Steve Carlton's second season in Philly resulted with 13 wins and 20 losses. This ball is signed by 28 members of the '73 Phills in ballpoint ink.
The signatures average "8-9" and include: Greg Luzinski, Mike Wallace, Tom Hutton, Mike Anderson, Dick Ruthven, Terry Harmon, Mac Scarce, Bucky Brandon, Billy DeMars, Barry Lersch, Carlton, Denny Doyle, Larry Bowa, Danny Ozark (sweet spot manager), Ken Brett, Jose Pagan, Del Unser, Bob Boone, Mike Rogodzinski, Billy Wilson and others.
Mike Schmidt did not sign this ball.
"1973 Phillies" is neatly written on the orb.
Authentication: 100% Authentic Team
Pete Rose Signed Newspaper – All-Time Hitter 4192 Edition From The Cincinnati Enquirer – Sept. 12, 1985
Certificate No: 57977
Pete Rose Signed Newspaper - All-Time Hitter 4192 Edition From The Cincinnati Enquirer - Sept. 12, 1985. Authentication sticker affixed.
Authentication: 100% Authentic Team
March 1, 1968 – Blackhawks- Bobby Hull Signed / Autographed TIME Magazine
Certificate No: 57596
Bobby Hull Signed TIME Magazine from March 1968. This beautiful hand painted cover shows Bobby skating on the ice. He signed his name on the cover boldly in blue felt tip and added his Jersey Number "#9" under his name.
Authentication: 100% Authentic Team
Colts Johnny Unitas Signed 8×10 B&W Photo with Mitchell & Ness Jersey
Certificate No: 57881
Go ahead and wow 'em with a pristine Johnny U signature. The signature spans across 7 inches of the photo and it is done in blue felt tip. This signature was obtained in person at the Cow Palace February 2002 show This ensemble is ready to frame(or wear.) The jersey is a Mitchell & Ness size 54.
Authentication: 100% Authentic Team
Luol Deng Game-Worn Bulls Shoes
Certificate No: 55743
Luol Deng is one of the leagues most under-rated players. Deng wore these size 15 kicks which show good use in an NBA game. They have "DENG 9" stitched on the tongues of the shoes.
Authentication: 100% Authentic Team
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