Hi, great thread. I own a Stradivaro 139 DeLuxe ZigZag. It's blue and white, works well, cost me $5 at a yard sale some years ago. I use it for repairing sails and making covers for my boat. I believe it dates to about 1962. "Stradivaro" was here on Long Island, and took pains to conceal the origin of the machine. There is a sticker over the part of the nameplate that says "Made in Japan", and the same print underneath is scratched nearly off. The machine has a matching case, and even originally had a blue belt. All of it's feaures work, but it lacks the power to punch through thick sailcloth. Pushing it to do so has caused the clutch to slip occasionally. Recently I cleaned the clutch plate which helped.