This is a visual guide to identifying certain black, cast-iron vintage Singer machines: The 66, 99, 201, 206, and 15 both potted and belted. These are the models I find to be most common in my area (NYC).
The excellent
online Singer identification guide from Sandman Collectibles is the current gold standard for identifying vintage Singer machines. It asks you to check off a list of features seen on your machine, narrowing it down until you arrive at the model number. It's predicated on having the machine in front of you, where you can see everything clearly.
But what if you're looking at a tiny, dark, poorly shot, grainy, out-of-focus photo on Craigslist or eBay and can't answer all of the questions asked by the Sandman page? This will help SOME of you (please read the caveat at the bottom of this entry) to look at a Craigslist photo and figure out if it's the model you're looking for or not. In general I don't look for common technical details like where the tension dial is or what side the light is on; I just look at the overall lines of the machine and a couple of clues that show up no matter how crappy the photo.
Case in point--the other day I clicked on a Craigslist ad saying only "Singer sewing machine" and saw this photo:
The photo's small, dark, shot from a weird angle and shows no detail, but I immediately knew it was a model 99. (I later e-mailed the woman and she confirmed it.) How did I know? You'll find out in this series of entries.