Yes, I know exactly when & where it's from;
The hallmark "H 6413" stands for Hong Kong, 1964, factory # 13.
It's stamped made in England, because Hong Kong was still under British rule until 1997.
The current market value is $6.38 ,,,,,,,,,,,,,,,,,,,,,,
Thank you Buzz Killington! Do you have a source for this information? @Tarkus, Yup used it this afternoon. I'm certainly a believer in art for art's sake but not relative to shaving gear.