Autograph Authentication Services
Certified Authentication Service (CAS) provides professional authentication for autographed items. Our experts carefully examine each signature to verify authenticity and issue official certification. Once a signature is deemed authentic it is assigned an alpha numeric tamper-proof certification sticker and matching documentation trusted by collectors, dealers, and auction houses. We offer multiple certification levels based on item value and quantity of signatures. Online verification is provided so buyers and sellers can confirm authenticity using a certification code. Whether items are submitted by mail, at shows, or through authorized dealers, CAS helps protect collectors by ensuring signatures are genuine and properly documented.
Services of
Certified Authentication Service
Client Testimonials
What Our Clients Are Saying
CAS is always our first authenticator of choice. There is nobody in the hobby we trust more. A combination of knowledge and ethics that we don’t believe you get from any other authenticator.
Scott Russell – The Collector Connection
“We have known Mike for many years and relied on his expertise & integrity in authenticating autographs of both vintage and current day athletes as well as celebrities. We have used LOA’s and COA’s provided by Mr. Root in our auctions & sales and have never had a problem with his work.”
Lou & John Inside the Park Collectibles
“Over the past 5 yrs using Mike Root as an authenticator I found him to be 100 percent Honest, fair and accurate with his services. He has always been very responsive and price-conscious to my needs as a customer. Thank you Mike for coming back!”
Jack Probstein
