the first letter-sorting machine in semi-wide use. But before and since Transorma, machines have come about to perform various tasks on jumbled messes of mail — things like distinguishing ...

Each mail-sorting machine can sort 36,000 pieces of paper mail per hour. But in mid-June, USPS contract administration manager Rickey Dean sent a letter to American Postal Workers Union president ...

But those cases are pretty rare. Once the mail has been canceled, it goes into the sorting part of the machine. The optical character reader will read the address and spray a bar code on the front ...

It may be surprising, but that’s how it was done for much of the 20th century, until the first automated sorting machine — Transorma — was created. While some early mechanical mail sorting ...