@SFOMuseum Instagram Posts tagged #coffeetime This is SFO Museum's archive of the @SFOMuseum Instagram account.

By the late 1930s, with the introduction of the Douglas DST (Douglas Sleeper Transport) and DC-3 Mainliners, United Air Lines provided standardized beverage service. This image was posted on February 15, 2018. #flyingthemainline #themainline #dst #douglasaircraft #dc3 #unitedairlines #airlines #airline #avgeek #avationgeek #aviation #aviationhistory #vintageaviation #history #avhistory #aviationgeeks #avgeeks #crewlife #coffeetime