Master 1 - Tape 1 Delivery of the United States Mail. Mail truck from the 10s or 20s drives up to an apartment building. Postman gets out of the back of the truck with mail. Walks up to door and puts two letters in a black exterior mail box. He then rings the doorbell, turns and walks away. The camera stays at the threshold. A woman opens the door and comes out, pulling her letters out of the bottom of the mail box. A man (in hat and goatee) walks in and puts his envelope in a slot that says: Deposit Mail Here and walks away. Behind the scenes of a post office in the 1910s or 20s. Men in vests sort through the mail by hand, efficiently. Then a very brief shot of an automatic sorting machine, as a man feeds envelopes in one-by-one.