@SFOMuseum Instagram Posts This is SFO Museum's archive of the @SFOMuseum Instagram account. from September 19, 2017

A pioneer in avionics, United was the first transportation company to install a two-way, coast-to-coast teletype service. This image was posted on September 19, 2017. #avgeek #united #aviationhistory #flyingthemainline #themainline #unitedairlines #aviationgeek #aviation #aviationlovers #vintageaviation #history #avhistory #aviationgeeks #instaplane #flying #plane #flight #airline #avgeeks #aviation4u #aviationdaily #avionics