Does anyone know what the acronym T.E.C.S S.F. stands for on some Heljestrand razors? The S.F. is on a second line so I thought maybe some San Francisco importer. The one I have is a square point, full hollow, 11/16", but no No. 8 marking.
Figured it out. It stands for The Exclusive Cutlery Shop, San Francisco. It was run by Carl Bergfried from about 1925 and by his son Herman to at least 1990.