Signal Green (teal blue) Optical lens by Corning Glass. No paper label.
Vintage Corning Optical Glass in Ruby Red for Railroad Signaling Lantern
Swindon Town B at 1905 Signal Box Railway Plan Diagram Signalling Record Society
4 1/8" Signal Green Corning 1905 Railroad Lantern Switch Lamp Smooth Lens Glass
4 1/8" Signal Green Glass Corning 1905 Railroad Lantern Switch Lamp Smooth Lens
Corning 1905 Red 4 1/2" Railroad Lantern Switch Lamp Smooth Lens Glass
