The tattoo business sometimes referred to this design as the “square top”. Over the years it sold for $20-$29.
From the Zeiss catalog: “This machine is styled after the late Percy Waters favorite malleable tattoo machine, and is set up in the same way as our other two machines. Coils are hand wound with #24 cotton covered magnet wire. Springs have pure silver contacts. Needle bars are made of brass with #12 sharps. Well balance machine. This is the best made tattoo machine in the world. Made like a jewel, and comes with the best sanitary tubes and needle bars. This machine runs perfect on 24 volt transformers or batteries. Outliner or shader machines $25 for one, or two for $45.”
