USAAF Grimes signal light model K-3

Grimes signal light model K-3 or Air Corps Type C-3-A complete in its original box. On the signal lamp itself there is a label which clearly states the signal lamp is US Army and Air Force property. The signal lamp itself and the box are both  nicely marked with the name of the manufacturer: Grimes Mfg. Co. Urbana, Ohio. The signal lamp is complete with all 4 coloured spare lenses which are virtually always missing or broken! Very nice and complete set!