They come up on ebay in the UK about once a week, but I've never seen any in such good condition. To have the original studs is so rare that it might even be unique. The maker's name is stamped on the inside: C.W. Horrell Ltd., started by this chap: http://www.rushdenheritage.co.uk/people/Horrellfamily.html
I don't know who the original owner is because I bought them from a militaria dealer. I've hunted for more info on the web, and they seem to have been unique to the Ordnance Corps, worn by British and Canadian officers. There's a story that they were not popular, but I don't know why.
Despite the age the leather is as supple as a brand new pair of boots. It's amazing really. That's why I'm tempted to soak them. But I think I'll show them to JF's favourite cobbler before I do anything. I'm concerned that the nails might start popping out or that the layers of leather in the sole and heel might separate from each other.