According to the newspaper article, the owner sent me, by the way its dated 1884 (not kidding) it was a one of the kind made for Singer, the newspaper is named "Michigan Farmer", i am waiting on more info, she wasn't to forth coming in answering my questions, she said it was her fathers machine and she has a treadle and does not have room for this one, i will get it if she is in Shorewood Illinois, the company came out with a new wheel version in 1884. It's interesting to read about these machines