Originally Posted By: J.B.Patton


I forgot to note that I would guess one of the "M"s to be for tube maker Max Moller(possibly of Moeller & Kellner-Zella Saint Blasii) if he was active during the 1890s and the other "M" for one of the Moritz fellas like Wilhelm Moritz of Zella Saint Blasii who founded his firm in 1869. Post WWI a Franz Moeller partnered with Martin Moritz on some venture. But the craftsmen with the letters "M" had to be a mechanic at the Sauer facility.

Kind Regards,

Raimey
rse