Great find. As for the import hand crank, they, for the price are pretty good. I was commissioned to create a civil war era portable hand crank unit for field re-enactments use. The lady did a lot of field repairs on uniforms and when my sister told of my collection, she asked if I could made a portable machine for her from my collection. I put a Chinese crank on it for her.
I think I paid $15 for the crank/spoke hand wheel combo. About 2 yrs. ago, I ordered an original Cir. 1900 from England and I paid a little over $100 shipping included. While the import(china) did a decent job, the original is of a higher quality. You should dismantle, inspect and lubricate the unit before using.
Soman2
The other Rodney