Originally Posted by camin

I'm researching a Singer treadle machine I purchased this weekend. As best I can tell it is a 15-30 Tiffany. The decals are intact, but overall the head appears very dull and decals look dark and brownish. I will use this machine to sew. In the process of my research I found this site and a thread from back in June about a 15-30. Can anyone advise me on how to restore the appearance of the head.
I'll get a bobbin for it tomorrow at local shop. They were very enthused to hear of my acquisition.
The serial# starts with letters "AB..."I think that means a build date of 1926-28. Does that sound right?