The info on ismacs is limited to files at the Witterberg were destroyed when the Russian army invaded Germany in 1945. All dating of C nubers seems to be lost and a bit of a guess work. I'm guessing it dates from around 1910 and that's only from commparing to B and D numbers. On the web there are 128s with these decals as late as 1930.
I have never seen a light like that, I don't think the motor is Singer made. The 128s have mounting for the Singer lamp in the back, I think it's a washer like thing or plate behind the plate in the back.
Last edited by Mickey2; 02-15-2018 at 10:44 AM.