Utah The rear portion does look Fox and the stock wood sure looks to match the forend.I have not handled any Philly guns with what I consider factory beavertail forends but yours sure does look close. I think the beavertail did not appear in the catalog until 1930 but Im sure Fox would have made a beavertail before that if the customer had specified it. The reprint 1930's catalog I have list a "English Beavertail" with the large schnabel and a "Trap Style beavertail" with fuller proportions. Is it posible that the gun in question originally had a English type beavertail that a subsequent owner did not like and removed the schnabel and added the new tip? Just a thought! What vintage gun are we talking hear? late 20's early 30's? I am also posting a picture of a Fox-Kautzky single trigger showing the selector location. Paul
