A good thing you deciphered the signature, or I would have argued that it looks too modern for a pre-1900 token. Both the design and the colour of the metal put it at a later date. Also, if Moïse bought the equipment of Klinkner in 1897, why did he need it if he could strike high-quality pieces like this one already?
I can perhaps add a clue. The design shows an Asian device,
yin and yang.
IF the client knew his Chinese symbols (there's no lack of Asians in SF) , the P and E would be complementary opposites (e.g. Peters & Edwards), rather than parts of a whole (e.g. Potty Engineering or Peter Edwards). NB: if the piece were British, I would have thought of
Phonographic Equipment immediately, in spite of the Yin-Yang.
Probably not a clue, but there you go. Moïse is French for Moses. As a family name, it is mostly in use by black people in former French colonies, including e.g. Haïti. Adding the German-sounding name Klinkner would have given Moïse some racial cover, but I don't think that by itself, that adds up to a reason to take over the Klinkner inheritance.
Peter