Singer Class 1200
The 1200 was manufactured in Elizabethport. It is a Singer 201 with reverse feed, a built on motor (Gear Drive - "Potted Motor") and an added knee lifter so that the machine can be used in a "semi- or light-industrial" setting ie by what Singer called an Artisan, in an industrial table. The parts book also shows some other minor parts as being different on the 1200 from the 201.
It was marketed as a Dressmaker's machine.
These old mechanical lifters are totally adjustable. You can adjust how hard you have to push it, how far to push it and how much the presser foot will move. It also adjusts to to fit your leg no matter if you are tall or short. Modern industrial machines have hi tech lifters that use air or hydraulics.
Instruction manuals for the 1200-1 have the following copyright dates: "Singer Electric Sewing Machine 1200-1 Copyright USA, 1915, 1920, 1921, 1923, 1926, 1928, 1931, 1932, 1933, 1935, and 1936"
The early copyright dates on the manual refer to text and pictures that are common to all manuals regardless of the model. (It doesn't mean the 1200 was made in 1915 or that there was a manual for it in 1915.)
According to Singer's information the total number of 1200s made was 6,500; they were manufactured from September 1951 - October 1956. They only show 6 batches of 1200s from 1951 to 1956. However, Chrys Gunther reports that 1200 machines are also mixed in with the listings for the 201, but there is no way of knowing how many of them are 1200s. Singer started making the 201 in 1932, so 1200s could be in any of the batches that say 201.
Serial #AM469274, 1956 made in Elizabethport, USA
Courtesy of Christoph Schmidt
Note the inlaid ruler on the table top and lack of decal on the bed.
Singer 1200-1 Manual
Courtesy of Richard Goldberg