picture would appreciate any info missing threadle where do i start looking

I just joined this forum. I have this same cabinet with my hubby' grandmother's Franklin treadle in it. (Pretty sure it's very similar to your machine.) I'm amazed at all the different attachments they had for machines back then. The ruffler/gatherer, the binding maker, etc. I have the instruction booklet, but it's seen better days. Love my heirloom.

what a beautiful machine