Antique Patent Model Railroad Safety Switch Lock with Documents by Hall anchored duck decoy Features two propeller blades set

Features two propeller blades set in a large steel frame

tangible form to prospective clients

as portrayed in the photos

Top drawers (x26): 14

This rustic piece is of sturdy pine construction with a coat of deep green paint

Antique Patent Model Railroad Safety Switch Lock with Documents by Hall anchored duck decoy Features two propeller blades setPatent dated September 7, 1926; Hall Signal Co. Garwood, NJ Wooden presentation case containing a patent model of the Hall Safety Switch Lock, an invention designed to improve railway safety by preventing misaligned or unauthorized switching. The model is built into the base of the case, with mounted wood and metal track sections demonstrating the locking mechanism in practical application. Included with the set are original explanatory pamphlets