Most likely you are speaking of the American Artist from Minnesota, Anthony Caponi. This particular artist tended to classified as a sculptor and was born in 1921.

There is a park named after the artist in Minnesota, therefore, it is likely if there is still a market for his art that it would be in your best interest to contact the administrators of the park for additional information.

http://www.caponiartpark.org/

Also, if you are interested in selling your artwork, you may want to list it or mention it on askart.com under the Anthony Caponi section.