I will soon be listing this C accordion on Ebay. It was built by Antoine Falcon, nephew of Joe Falcon and uncle of Randy Falcon. Probably build during the 50's.
If any forum member has a historical or other interest in owning this instrument, let me know on the Bravenet.
A picture can be seen here:
https://www.flickr.com/photos/49786887@N03/15581700451/