Your post reminded me of making copies before CAD and plotters. If you wanted to copy a large format drawing, you used a print machine with gallon of bubbling ammonia! Today, the entire room would be considered an bio-hazard area and you would need a respirator.
We still have one of those in the office. Used occasionally for making blue-line prints of old maps in storage. Speaking of old office equipment, the boss picked up one of these when they were brand new. If you like mechanical wizardry, the Curta Calculator was impressive!
