There are way too many posts on this forum to read them all, so this may be a repeat. My husband bought me a vintage sewing machine at an estate sale for $30. It is a Necchi, made in Italy, Model BU. She really purrs like a kitten. There are lots of different feet for it - but no manual. I've not been able to check the stitch as I'm not sure how to thread it. From the little I've been able to find on the Internet about it -- I'm thinking he did good. But it seems there are 3 different kinds of Model BU and I'd like to get it ID'd accurately so I can look for the right manual. Can anyone give me a link to get it ID'd, please?