I recently had the pleasure to visit the Baltimore Museum of Industry. The museum has a good number of working industrial machines on display. The tour guide shows these machines working in the exhibition. One exhibit that stood out for me was a Linotype that was demonstrated by a gentleman, Mr Ray Loomis, who used to work at one of these extraordinary machines. The Linotype was originally invented and developed by Ottmar Mergenthaler, a German watchmaker. Here’s a video I found on YouTube in which Mr Loomis explains the Linotype.
If you have further interest in the Linotype, the half hour long documentary “Farewell, Eaton Shrdlu” shows the last day of operation of Linotypes at the New York Times.