Looks like a safety bar Optomo
I am sure someone will have the right answer for you soon
Optimo had the name printed in big letters inside the base plate, and they were mostly Old Type heads in travel set collapsible handlesLooks like a safety bar Optomo
I am sure someone will have the right answer for you soon
I can't tell you what it is -- beyond a generic German razor -- but it's definitely not a Gillette.