Originally Posted by
blueprinciple
Almost certainly Sheffield made. I have seen many razors struck with the names of various London retailers of Piccadilly, Strand, Regent Street, Bond Street, Fleet Street et al - yet virtually no razor-makers were extant in London at this sort of time (despite the cutlery guilds having originated in London). Probably made by one of the Sheffield 'Names' - all top quality as you would expect from top shops.
Incidentally, the phrase 'Foreign' (OLD English 'forreyn') on cutlery (C. 1650's) originally meant 'made outside London' - not necessarily outside England - as London was deemed the only place that fine cutlery could be made in Britain! (source: Moore - Table knives and forks, Shire Books.)