1960s ACME Stapler [Restoration]

This tool restoration is on a model 27BC Acme Staple Co. stapler. The Acme Staple Co. is actually still in business today. This particular stapler is somewhat difficult to date as the aluminum castings contain reference to the Camden N.J. location where Acme Staple Co. was based out of from 1909-1959, but the metal label references the Franklin, N.H location where the company was based out of after 1959. I am going to assume this stapler was made around the time of the transition between the two location