Yes you have Joe....my newest treadle is a 115...pics in the photo thread...
From what I understand, there were only about 300,000 model 115 machines made in the....uhmmm...15 years or so that they made them. (I'm trying to recall what I read for the length of time that they made them, I know the number was 300,000 tho....that surprised me because of how many of each model Singer normally made. I do recall that they didn't make the 115 for very long tho...)