That being said it reads: AG891945
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AG- 890446 to 925445 Model- 15 Allotted- 35000 Date- December 20 1946
From-
AG Serial Numbers - Comprehensive Singer Sewing Machine Serial Number Database
Thank you!! Now I need to start playing with it, getting it cleaned up and see what she can do. And a name! Ideas? LOL I'm useless!
This website is helpful too -- there's more than one variety of 15. If I had to guess, I'd say it's a 15-90, but if you read this post you can probably figure it out. The Vintage Singer Sewing Machine Blog: A Visual Guide to Identifying Singers from Crappy Craigslist Photos, Part 2: Narrowing Down the Model 15
Oh, and it's a sister of mine -- AG901091, same batch of serial numbers! How cool is that! Mine is a 15-91.
And I just read that blog post again, & I don't see a side mounted motor in your picture -- so now I'm placing my bet that yours is a 15-91, like mine!
There is a list of manuals at ISMACS (International Sewing Machine Collectors' Society).
The first link will take you to all of the Singers - if you scroll down to the bottom of the list, there are also instructions to use the attachments that can look so weird and you don't know how to use (.... pointing at myself ;))
I also posted links for the 66 class and 15 class...
Singer Sewing Machine Manuals
http://ismacs.net/singer_sewing_mach...ine-manual.pdf
http://ismacs.net/singer_sewing_mach...uals/15-91.pdf
Ohmygosh! This blog is awesome. I've been having some trouble identifying the differences between the 99 and 66 in crappy ad pics. I knew they were shaped nearly the same with only slight differences, and I knew about the potted/non-potted motors, but with the schematics on this blog showing the slight variation in the heads, now I have a way to id the two based on bad pics alone.
Ok, just found this cool site - it walks you through steps of identifying your machine if you have one (particularly one with no serial number)...
ID Singer Machines