Group of three Apollo LM/CM hermetic rotary switches, measuring approximately 5″ long and 1.75″ in diameter, manufactured by Daven. All bear black tags on the side, associating them with contracts "NAS9-150" [Command Module], "NAS8-22727," and "NAS9-9224," with manufacture dates of 1967, 1968, and 1970. These are high-reliability versions of usual electronic rotary switches, with a hermetic design (the filling/purging tubes can be seen on the connector ends) to prevent sparks from igniting anything within the spacecraft. These switches were highly sought-after by scrappers, and each may yield about half an ounce of gold alloy. In overall fine condition.
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