@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
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#Onthisday in 1939, #PanAm established the first regular air mail service across the Atlantic. . This tweet was posted on May 20, 2016.
This tweet mentions the following things involved with the SFO Museum collection:
Pan American Airways.
It is related to
Pan American World Airways (the company)
.