No. All that seems to have survived is about 85 to 90% of the original production cards. From everything I've been told when I inquired, no record of repair or retrofit work has survived.
Are you saying that you have a Philadelphia era Ansley H. Fox double with a beavertail that letters? I've long heard that they exist, but I've never seen one. Please post many pictures here and at the Fox Collectors web site --
http://foxcollectors.com/My%20Forum/phpB...ded5931d22a9026A set of retro-ftted barrels and forearm with a Philadelphia roll stamp on top the barrels and a Savage proof on the flats smacks of something Mitzie Bielin might have done in the 1970s after Savage quit servicing Ansley H. Fox guns.