Antique Patent Model Railroad Safety Switch Lock with Documents by Hall anchored duck decoy and ocean detail reflects the

and ocean detail reflects the academic realism long favored by marine painters

5" W x 2" D x 3

(Ajusco) - Milwaukee

tangible form to prospective clients

as portrayed in the photos

Antique Patent Model Railroad Safety Switch Lock with Documents by Hall anchored duck decoy and ocean detail reflects thePatent 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