In with the machine I purchased were tophat cams 101,102,104,106,107,108,109 and 111. 101,106,108,111 have a concave surface. All have the numbers and design printed in gold. I also have needle plates 546224, 542396 and 540101. All have a closed hole and a U shaped opening for attachment to the machine. I wanted to make these available to the members of my Homemaker groups as I don't need them for my 403. I have Googled and searched on other Singer groups, blogs, information sites, ebay, craigslist and cannot find the information. I have to have the machine number to do a search LOL I hope that you can send me in the right direction. Thank you in advance for any help.