The vertical filing cabinet more or less as in use today was invented by Edwin G. Seibels in 1898. He was working in his father's insurance office and realised that the then current system of folding papers into envelopes and storing them in pigeon holes could be improved if the folding was dispensed with. The documents could then be stored in large envelopes vertically, in drawers.
Example Usage of cabinet
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MicheleGuizz: @MaksimC Feel better Max, I woke up sick yesterday too, thank god I had a Z Pac in the medicine cabinet. Merry Christmas if you can!! :)