Is the handle and scales quite flat in profile?
i have a knife with scales like that ( wm rodgers) but with no crossguard, and blade is slightly different. Ill get a pic sorted.
Sounds like mine, which I dug out last night for the first time in years; except mine has rosewood scales fixed with brass pins. They are very small and boxy, I think to suit a young boys hands. I'll get a pic of mine up later when I get home, but I'd be really intrigued to see a photie of your one as well.
After a bit of reading last night, provoked by this thread, it seems that this blade pattern was very common to a lot of mid century Sheffield makers, (the blanks perhaps even coming from one place), and were handled and sheathed to be sold for many different purported purposes such as my Boy Scout knife.
With the very thin blade it struck me last night that this would make a very good knife for food prep and slicing, so I'll make a sheath for it and carry it in my cook kit for a while.