A short silent film showing the Multi-Position Letter Sorting Machine (MPLSM). MPLSM operators used 20-key keyboards to type in two or three numbers from the ZIP code, so the machine could then sort ...

TikTok is a great place to see how things work behind the scenes. One United States Postal Service (USPS) worker showed how the post office sorts through letters. He also shared a public service ...

When we last left this subject, I told you all about Transorma, the first letter-sorting machine in semi-wide use. But before and since Transorma, machines have come about to perform various tasks on ...

SCARBOROUGH, Maine (AP) — U.S. Postal Service workers have reassembled one of the two high-speed letter sorting machines that were ordered dismantled over the summer in Maine. WMTW-TV reports the ...

A new sorting and delivery center serving Suffolk County was unveiled Wednesday by the United States Postal Service, designed to get letters and packages in mailboxes and at front doors faster. USPS ...