Your machine looks like mine does.
When I bought it, there was a 220 volt motor on it. I suspect it had been a hand crank machine, due to the fact that the bentwood top
fits on just fine, without removing the hand crank. I decided it would be better as a hand crank machine, so my 201K-4 machine donated her hand crank. I like to treadle the 201k, easier on my arm.
I take the 99K to TreadleOn Gatherings(TOGA) for sewing swap blocks and such.
Sharon in Texas