Re: "serial numbers into the low 19,xxx range".
The Canadian made "Tobin" goes to at least serial number 19481. I bought it autumn 2008 in Woodstock Ontario. The former owner had replaced the original buttstock with a nicely crafted and checkered English hand/straight grip stock. My 19481 was undoubtedly assembled by C.G. Crandall in Woodstock, most likely in his latter gunsmithing days.
Wildcat Cartridges - by Richard F. Simmons 1947 - pages 89 and 90, has an article on C.B. Crandall, his ".303-B .22 Varmint-R" cartridge, and HIS PICTURE.
