The most complete baseball card price book would be the 2008 Standard Catalog Of Baseball Cards. You can also get the beckett guide but its limited to the number of cards it list.
There is no good free baseball card price guide. Go spend five dollars and buy a Beckett Price Guide and get professional values complete with a condition guide too.
Baseball Card Price Guides.
You can visit the Beckett.com website.You will have to subscribe for a fee of $5.95 a month, but you will be able to tap into a large data base of prices, and more. If you...
Signed Baseball Cards.
It is best to have a baseball card signed that has a low value, and has less of a chance of growing in value in the future. Once a baseball card is signed it loses it's value...
It completely depends upon which card you are talking about - it all depends upon supply and demand. The best way to see what a particular card is worth is to do a search of completed auctions on...