Pair Red & Blue Nautical Copper Port And Starboard Kerosene Alcohol Oil Lamps

Description

Pre 1960's. Blue glass was used before green because with yellow lamps light will show as green.
No markings for maker. Port and Starboard Logo on tags which are faint and slightly raised.
Copper on brass. Exterior is bright and clean with minimal patina on the interior. A couple of small dents on both pieces on right top corner. I don't know if the tops open or not.
Oil lamps are in good condition with no damage or corrosion.  Tin backs are removable and everything slides out easily.
Colored (not painted) glass is clean with no cracks. Hanging hooks on exterior are solid brass.
11 3/4" H x 6 1/2" W