The Pennsylvania railroad was unique having the only key showing bumps on the hilt. Usually the key was referred to the knobby one. Nicely worn with all marking very distinctly clear. No Divisional markings but has an Hallmark. On the back key has the F-S Diamond logo dating it around 1915-1930's. Front has the P RR for the Pennsylvania railroad. Near perfect pocket wear with all marking very clear. A great addition or an up grade possibly.
