@SFOMuseum Twitter Posts Tagged mail This is SFO Museum's archive of the @SFOMuseum Twitter account. See all the tags or all the Twitter posts that have been archived so far.

"Absolutely Sanitary US Postage Stamps" This #coinoperated machine from the early 20th century vended items for #mail correspondence outside of the post office. #philately This tweet was posted on June 28, 2018.