So this one got away from me while I wasn't paying close enough attention, at local Eugene ShopGoodWill
Not a very good cut and paste but it's from a scan of the Milwaukee Journal of Jan 21, 1953 for a New Royal zig-zag.
From what little I can make out, they look the same. I just read somewhere that there was a joint venture between Free and ?? in Germany to produce a zig zag machine. So other than holding a hankie for me over the one that slipped away, who can tell me some more about this. Ironically, I wound up with over 120 needles that may be for this machine,The needles have no flats, are type 16X87 are 1.5" long, .064" dia shank, and 1.36 from the top to the center of the eye. A regular 15X1 needle is pretty close to the same except with a flat and a shank about .080" except where the flat is, it's also .064" thick. Somewhere someone is trying to put a 15X1 where it might not go as well....Was this family of machines built by Pfaff?