More vintage Singer feet, accessories questions!
I have more questions!
I see attachments/feet marked "blackside." The parts are black. What machines were these made for, and are the interchangeable with other, non-blackside, low-shank feet that would fit a Singer 15-91 or my imaginary 201?
Case in point. I've been searching for one of the adjustable hemmers. I found them in all-stainless (?), stainless mixed with blackened parts, and all blackside ones. Are there any differences besides the colors?
How would I be able to tell the ages? My 15-91 dates from 1954. I would like to find the feet and accessories that would have been available for it at that time. Or, would newer feet with the same parts numbers work just as well as the late 40s to mid-50s ones?
Here's examples of black or steel hemmers.