A signature does not increase the collectible value of a Baseball card. Once a card is signed the signature (not the card) becomes the collectible, and holds the bulk of the value. The baseball card is used to display the signature, and the value will be effected by how well the signature is displayed.
In general, collectors of baseball cards would rather have a baseball card without the signature. The signature would be considered as a flaw in the condition of the card and will lower the value of the card as a collectible. If the signature has a lower value than the card it will lower the value of the card. The un-signed card will have a higher value.
This is why it is not a good idea to have an expensive card signed. Signatures have a higher value on a baseball than on a card. Signed baseball cards sell at about 10-30 percent the value of a signed baseball. The percentage will vary based on the popularity and rarity of the signature.
If the baseball is "multi-signed", and not "single signed" you would have to name the other players that signed the baseball to get an approximate value.
What is the value of a signed baseball ?
450.00 and with a retirement in his future--it will increase in value.
You can buy an Appling signed baseball with a COA for 80 dollars.
The value cannot be determined without knowing which 12 Hall of famers signed the baseball.
The value of the 1988 Los angeles Dodgers Team signed baseball is $475.00
The value of a baseball signed by Cap Anson is between $400 and $600. The value depends with a few factors like the geographical location.
depends on what type of baseball he signed, how he signed it and also what type of pen he used and where on the baseball.
It depends on who it's signed by.
Book Value in Mint is $200, but the signature would increase that value.
The value of the 2002 baseball card will rely on who signed the card. Once a collectible baseball card is signed the value of the card dramatically goes down as a collectible. The card then becomes an Item to display the signature. The bulk of the value relies on the value of the signature of the player that signed the card, and how well the card displays the signature. In general a signed baseball card is worth about 30% - 40% the price of a signed baseball or the same price of a signed 8 x 10 photo. A high valued card can add some value.
I also have a Maury Wills Signed Baseball they are valued at between $25-$35.