ROLLS safety (really?) razor handle

I didn't have the slightest idea at all what this little 'tool' was until closely looking at the pics I took (esp #4) in order to actually be able to read the lettering stamped into it -- until then the only word I'd been able to make out (w/just my eyes and a magnifying glass) was "ENGLAND". Turns out I think the other words around its outer edge read "ROLLS RAZOR" (at least) which when punching that into Google promptly provided lots of pics to identify it as the handle portion of (one model of) a ROLLS "safety razor". (the d*mn thing doesn't look terribly 'safer' to me than the maybe even older 'straight razors', but whatever... <lol>)

https://www.google.com/search?source=univ&tbm=isch&q=rolls+razor&sa=X&ved=2ahUKEwirxfqYw6rqAhUBQawKHYB2A3EQsAR6BAgBEAE&biw=1252&bih=579

Pic 1 shows it fully screwed together (note the little roundish protrusion opposite its 'hook' part on the LH side) and pic 2 shows it slightly unscrewed to retract that protrusion. Seemingly that held it (as a handle) to the bizness end of the thing. Pic 3 shows both parts of its handle fully unscrewed and separated, pic 4 is the best (of over a dozen attempts) to catch that elusive tiny print on the other end of its handle.