I repaired a model 312 pump rifle for a friend awhile back and it also was stamped "Benjamin Franklin"
If I remember correctly it was just a play on words according to Tom Gaylord.
At August 01, 2005 6:24 PM, Anonymous B.B. Pelletier said...
" Yes sir, it does have "Benjamin Franklin" stamped on the left side of the receiver tube, but that is just a play on the name of the company - the Benjamin Air Rifle Company, which you'l find stamped on the end cap behind the bolt.
There has never been a Benjamin Frankin model. Many older Benjamin guns have that name stamped on the side. The fact that the name is in quotes indicates that it's not meant seriously."
"Springers are neat,,One Shot One Bullseye"