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 ...
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 ...
Click to open image viewer. CC0 Usage Conditions ApplyClick for more information. One of the ongoing challenges of the Post Office Department over the course of the twentieth century was sorting an ...
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 ...