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That's an interesting way of looking at it, thanks. Can also be taken at face value though, yes?

Could be this:

Emil Hermes, Merkur-Werk, Solingen-Merscheid in 1920, 1922 and 1932, Beethovenstrasse 235 in 1939, Margaretenstrasse 15a in 1986, Friedrich Wilhelm Strasse 18 in 1998. Brand names:...