I have two sets of Nolan Ryan baseball card. Just below his name one set states Mets 1969. The other states Rangers 1991 below his name. They both havethe CocaCola Logo on the upper right hand side. The top of the card state Donbuss 1992. They are in Mint Condition.

How much are they worth?

As ungraded cards they don't have very much value from the looks of it. Entire sets seem to be going for $11.50 (buy it now) prices on eBay.

Here is a link.

1992 donruss | eBay