Thanks for sharing. I never knew there were so many different kinds of older sewing machines. I am learning a lot from here on the Quilting Board. My husband and son collect antique tractors, but I could hear my husband if I started collecting old sewing machines. hee! hee!
Some day, I just might have to go for a longer road trip to South Dakota than just to Sioux Falls to the Orthopedic Institute and see your wonderful collection.