Submitted by Paul Domeier

Crouse-Hinds DCB-10 Beacon Light
Comments by Paul Domeier.
This particular unit was at KVCB Nut Tree in Vacaville, CA, and the local lore is that it was originally installed at Travis AFB (formerly Fairfield-Suisun Army Air Base) in Fairfield, CA… but as this is not a white/white/green flash unit, I’m not so sure of that.

There’s a real Buck Rogers type feature that doesn’t show up well in the photos: The unit has two bulbs, but only fires one at a time. The second bulb is spring-loaded in an auto-switchover mechanism that would slam it into the primary position if the first bulb failed… or maybe it’s supposed to be triggered by a remote switch?