Kopp red glass 4-3/4" lens. Smooth face with a frosted or stipple pattern on the backside. Appears new.
Vintage KOPP GLASS Railroad Highway Reflector XR7510 - 5-1/4" Blue Hobnail Glass
Vintage KOPP GLASS Railroad Highway Reflector XR7510 - 5-1/4" Red Hobnail Glass
VINTAGE KOPP GLASS RAILROAD LENS 4.75" With Birds And Flower Glass HairlineCrack
Vintage Kopp Glass ~ Amber Glass Lens 4 1/2" L 3 F ~ Lamp Lantern Signal ~ NOS
Vintage Kopp Glass 4-3/4" Railroad Train Signal-Lantern Lens 1930s Blue
