Telegraph Key, Vintage 1930's, Custom-Made, Vibroflex Components Sally Bomber and has the alternating munsell-green

and has the alternating munsell-green colored markings used across many USN instruments

3-1940 Type-1

The interior of the glass requires cleaning

Each chart had the star map for a given latitude across longitude

Telegraph Key, Vintage 1930's, Custom-Made, Vibroflex Components Sally Bomber and has the alternating munsell-greenHere is an interesting, custom made Telegraph Key estimated to have been made in the 1930's. According to a knowledgeable person on the subject: "The knob and finger piece are from an early Vibroplex, possibly a Blue Racer. The lever arm looks to be from a Vibroplex Lightening Bug. The Vibroplex pieces look like they come from the early to mid 30's. The damper and dit spring are unique in the way the builder decided to fabricate his own design." The