You did not mention what item was signed by Ryne Sandberg. Different items signed will have different values.
A Ryne Sandberg single signed Baseball is worth about $75.-$100. an 8x10 photo is worth about $50.-$75. and a baseball card about $25.-$35.
Value is based on average prices of recently closed auctions. Prices may vary based on condition, and the type of authenticity that accompanies the signature. Signatures that have not been properly authenticated could sell at half the market value or less. Add for inscriptions.
Collectors will pay more for inscriptions such as "HOF" and pay less for personal inscriptions such as "Good Luck Mike" The inscription "37" I believe refers to his uniform number with the Phillies but there would be more Cubs fans interested in his signature and number "23" would be more desired. The "37" could lower the value.
how much is a signed autograph on a cd cover worth of madonna?
This will depend upon what his autograph is in. If you have a signed poster, it will be worth close to $50.
I think it depends who signed it.
It is worth between $7000 and $9000 depending on the quality of the autograph.
$85.00 for a signed football
His autograph is worth around $15. The amount will increase depending upon if it is signed on something, such as a print.
Frank Miller's autograph is not worth very much on its own. The worth depends on the item you are selling that is signed. Comic books signed by Frank Miller can be found between $10 to $300.
47 pence
Less than the item it was signed to
A Brandon Phillips signed baseball is worth about 80 dollars
I have seen 500-30,000 depending on when, condition, what he signed. I think the ones at the time he was in the apollo program are worth more as are signed photo's
According to Sanders Autograph Price Guide - 7th Edition 859$