Here's a very nice resource for researching vintage machines, especially treadles. www.treadleon.net. There is a mailing list as well. I've learned a lot from this site. I have a White treadle that I restored and 2 Featherweights, one a 221 and the other a 222-the freearm model. I also have 2 301's, one a tan shortbed and the other a black longbed. While I have a top of the line Janome, I really like to piece on the Featherweights or the 301's. The black one is just new to me. I've sewn on the tan one for several years. Love those mechanical machines!