Trivia42, your presser bar looks similar to my White FR which uses top-clamp presser feet. I had purchased a full set of presser feet from Ebay a couple of months ago that didn't fit my machine and Cathy educated me that the set I had was for a Free Westinghouse machine which has a thinner space between the prongs that fit around the threaded part of the presser bar. I'll PM you with you details.