This little knife is just a bit bigger than a traditional Peanut. It's a small (70mm) version of a Farmer's Knife, which is the same frame shape, but bigger, at 4" or 100mm. Handles are red plastic, presumably Grilon, but that seems a bit newer than the knife--but they don't shrink, so obviously not cellulose acetate. Tang stamp is "WENGER TAHARA" which puts it at 1910-1925--it is my oldest SAK, and my second or third oldest folder (I have a pre-1891 Wostenholm Senator in tortiseshell that beats it out). I don't think there are too many out there--I bought this one cheaply and haven't seen another since.
The remainder of a "MADE IN SWITZERLAND" etch. Obviously, this knife was made for export. I would presume that there would, most likely have been a distributor/importer name too, but I can't find one.