Signatures that are not properly authenticated could sell at half the market value or less. Compare your signatures to others that have been authenticated by a trusted company like PSA/DNA or JSA. Search through the auction archives of a number of auction houses. After comparing your signature to a number of authentic signatures and you feel that your signature is likely authentic then have it done professionally.
it depends if you have a certificate of authenticity (COA)
Depends on the year, depends if jersey is stitched or not, and it depends whether you have a certificate of authenticity.
COA is an acronym that stands for Certificate of Authenticity.
Your answer depends on who issued the 'certificate of authenticity'. The certificate may authenticate the design, the metal, or the gem stone.
Information available on the internet suggests that if the owner of a certificate of authenticity for an autograph was to sell a famous autograph then it would fetch far more if sold with a certificate of authenticity than an autograph that was sold without one.
a football jersey is a football players shirt
Whether or not a ring comes with a Certificate of Authenticity depends on the policy of the jeweler selling the ring. However, if you want a certificate of value for your ring, it is easy to take it to a jeweler and have it assayed.
It depends if you have a pro model jersey or a semi pro jersey. Pro jerseys have a fightning strap located at the back bottom of the jersey. Lindros pro autographed jersey is worth anywhere from 200-400 dollars. A semi pro or replica jersey would be worth anywhere from 75-150. In order for the jersey to be worth any decent cash it has to have authentication documents or a recognized certificate of authenticity. No certificate and the value is greatly reduced.
COA stands for Certificate of Authenticity.
There are a number of things that are required in order to write a certificate of authenticity. You should have all the relevant details and most importantly have a seal or a stamp which makes it authentic.
have you tried ebay
Yes - the tefillin will have a certificate of authenticity.