|A typical mimeograph machine wikipedia.org illus.|
One hundred years later one of the places that I worked at, for a short while, had a machine we used every day for shipping and export/import papers. Later on at the South Portland, Maine School Department business office we had one, it was rarely used then.
Mimeographs were gradually replace by copiers of differing types, that's a subject for another time.
|Convair B-36B wikipedia.org photo please click to enlarge|
The plane in the photo is a B-36B which included, in addition to the six piston engines (R4360), two J57 jet engine near the outer tip of each wing, enlarge the photo by clicking on it. The Peacemaker also had the longest wingspan (over 172 feet) of any aircraft ever flown by the U. S. Air Force.
Part of the regular maintenance was changing each of the fifty-six spark plugs on each of the six piston engines. Each piston engine had it's own 100 gallon oil tank.
To get an idea of the planes size the wing root (where the wing joins the fuselage) are 7 1/2 feet tall. A transport version (C-99) was built, it was a double decker. A civilian version of the C-99 was on the drawing board - it would have been the first Jumbo Airliner.
The B-52 replaced the B-36 in the 1950's and the last one retired from active service in 1959.