Now we visit the Gillette factory in England on the cusp of WWII, courtesy of
Machinery and Production Engineering (London), vol. 53 no. 1357 (1938, p33-38). Since
1927 production has moved from Slough to Isleworth. This happened very recently, ca. 1937. The razors produced are no longer the New Improved and Old Type, but the NEW. The working day appears to be 15 minutes shorter. The factory at Isleworth also produces blades, instead of importing them from Canada as in 1927.
Speaking of blades, compare the process here with
that in 1956, still in Isleworth. They seem very similar but soon after 1956 everything would change. First would be the Super Blue Blade, and then serious competition from coated stainless blades ca. 1962. In this 1938 article there is a brief mention of stainless too, but these would have been uncoated blades, probably like the KroMan in the USA....