When I was training we had a lathe capable of machining ~22 foot diameter LP steam turbine sections, as did every large power station, for on-site repairs, only saw it used once with the operating machinist riding on the tool post at the console.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...f_fullsize.jpgMedical staff during Spanish Flu epidemic, Sydney, Australia, April 1919.
Scotsman Hosie (02-17-2020)
Fullsize image: https://s3-us-west-1.amazonaws.com/h...w_fullsize.jpgMine crew at Calumet & Hecla Mine shaft No. 2, Calumet, Houghton County, Michigan, ~1906
Fullsize image: https://s3-us-west-1.amazonaws.com/h...8_fullsize.jpgClerical employees of Los Angeles Police Department getting fingerprinted, 1928.
Under the man's nose at the middle right-hand side of the pic, a label says "Circular File". That's a common joke nowadays for a wastebasket.
Was it a joke in 1928 too? Or did "circular file" ever refer to anything non-humorous?
Possibly although the only etymological reference I can find with a cursory googling is this https://www.collinsdictionary.com/us.../circular-file which says it first appears in the 1945-50 time range.
Also, that usage is contraindicated by the fact that the label is on one of the filing cabinets, not the trash bin.
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