You can get a "little" more info by searching "Marvel Needlekraft works, New York". I see you have the instructions, that should help. According to what little I could find, it is a sewing machine attachment for adding embroidery to a garment or other fabric object.
I read on one of the hits I got that the instructions are in French. I hope not, or that you read French.
That's all I could find, but I'm not the best searcher, by far.
bk
Apparently, the company was active in the 1920's. I don't believe they made machines, which is to say I've never heard of one. There may not be much info available.
Last edited by bkay; 04-19-2024 at 08:57 AM.
Reason: added thought