Automatic sorting machines are being trialled at the District Post Office

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In the District Post Office in Amsterdam two sorting machines have been running in parallel for some time now, making the sorting of mail entirely automatic. Mechanization was made possible by the introduction of the postal code by the PTT. SHOTS: incoming mail on conveyor belt to franking machine; pre-sorting according to size and thickness in a rotating drum; mail transported via leather belts and postmarked; conveyor belt with bins of mail to sorting department; pan over sorting department; employees behind sorting cabinets sort the mail by hand; employees behind indexing machines type in postal code of letters; cu bar code on letter; sorting machine automatically processes the mail using bar code on letter.barcode on the letters; bundles of mail are thrown into mailbags; mailbags are loaded into a mail train.

Human-made No record of this work says a model made it. What this means.