Autograph Coa

How do I know if this autograph is legitimate?

http://cgi.ebay.com/ws/eBayISAPI.dll?Vie…
I want to buy a similar item which come’s with Mainstream Memorabilia’s COA, but how do I know if it’s legit?

There’s no way whatsoever of knowing if it’s legit.
I would never buy an autograph from someone I don’t know.
The only way to be sure is to get signed stuff from official websites of the person, or actually from the person themself.

Charmed Autograph Coa Ebay

JEFF CARTER signed *2010* FLYERS Stanley cup puck W/COA – MLB Mugs and Cups $106.81 JEFF CARTER signed *2010* FLYERS Stanley cup puck W/COA…

JOHN MADDEN signed *2010* BLACKHAWKS cup puck w/COA – NFL Mugs and Cups $100.13 JOHN MADDEN signed *2010* BLACKHAWKS cup puck w/COA…

JOHN MADDEN signed *2010* BLACKHAWKS cup puck w/COA – NFL Mugs and Cups $100.13 JOHN MADDEN signed *2010* BLACKHAWKS cup puck w/COA…

Star Wars Rune Haako Signed Autographed Episode I 1 action Figure $3.98 Star Wars Rune Haako Signed By JEROME BLAKE in Person with COA Episode I 1 action Figure…

OHIO STATE BUCKEYES TEAM SIGNED AUTOGRAPHED FULL SIZE AUTHENTIC HELMET TROY SMITH,EDDIE GEORGE,JIM TRESSEL,PAUL WARFIELD,ARCHIE GRIFFIN COA $999.99 YOU ARE LOOKING AT A NICE SIGNED FULL SIZE HELMET WITH THE OSU TEAM. ITEM COMES WITH A COA….

Australia Coat of Arms Cribbage Board $23.34 Solid Oak Cribbage Board featuring the Coat of Arms of Australia…

Rapper Aubrey Graham DRAKE Take Care Signed Autographed Microphone COA You are looking at a signed microphone by rapper Drake. This microphone was signed at the team hotel. This is a must have for any fan. This item will also come with a COA from Sport Autos 11. This item is guaranteed to pass any type of authenticity testing. We have been in been doing autographs for the last 2 years and have decided to move to Amazon. If you have any questions feel free to ask. Goo…

Reba MnEntire Signed Autographed 8 x 12 CD Insert, Authentic with COA $54.95 All items are original, authentic autographs, no facsimiles, preprints, or autopens. We have been collecting and selling autographs since 1982, we know the importance of dealing in only original, authentic autographs. Each photograph comes with a certificate of authenticity issued by Valentino’s. Valentino’s are proud members of the Universal Autograph Collectors Club. Shipping: We offer safe, fas…

Cleveland Indians/Twins JIM THOME Signed Autographed NFL Jersey COA 600 HR CLUB!!! $249.99 You are looking at a signed jersey by the Minnesota Twins now Cleveland Indians Jim Thome. This jersey was signed at the team hotel. This is a must have for any fan. This item will also come with a COA from Sport Autos 11. This item is guaranteed to pass any type of authenticity testing or your money back. We have been in been doing autographs for the last 2 years and have decided to move to Amazo…

RICKIE FOWLER signed *PUMA* Golf hat W/COA NEW WHITE 1A – Autographed Golf Hats and Visors $283.20 RICKIE FOWLER signed *PUMA* Golf hat W/COA NEW WHITE 1A…