I agree with the others regarding the size of your machine and the treadle base. I have my g-grandmother's treadle base. The machine that was originally in there had been electrified at some point. When my grandmother had the machine it and the base were somehow separated. I was given the base after my grandmother's passing. The Singer 15 machine I have does not fit. I finally found an electrified 66 that will eventually go into this base. If I ever get around to finishing up the cleaning/refurb process, lol.