I would google your machine to find the belt. Also, someone on the board told mentioned Sewclassic at shop.sewclassic.com - they sell a lot of accessories and parts for vintage machines. I just bought a 1/4 foot and a few other things for my Singer Featherweight. Good prices. Everything is by email, no phone number listed. You can communicate by email and tell them what you need. The shop I used to get info on greasing and oiling my Featherweight is The Singer Featherweight Shop - they had a neat you tube. I know you don't have a Featherweight, but you could google on youtube on how to grease and oil your 1912 machine. I'm a visual learner and the youtube was a great help. Your machine will look beautiful once it's all done - just take it a step at a time.