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Unknown metal, not magnetic not aluminum,not lead, not spelter not nickel, not titanium.Some sort ofhard alloy, maybe some brass &copper mixed in.
>>>Advertising used the term "Mammutwerke Nürnberg"
Early models used 200cc Baumi two-stroke engines, followed by engines of their own produced in capacities from 250c to 350cc, both two-stroke and four-stroke.
Towards the end of the 1920s they used engines from Blackburne, JAP and Villiers, along with 600cc MAG V-twins. As the depression bit they switched to smaller engines including those from Moser.
In the latter half of 1928 at the Leipzig motor show Berner & Co. introduced a range of dreiraders (transport three-wheelers) powered by their air-cooled engines, the lightest being for the tax-free class with a 198cc four-stroke accepting a 200kg load. Others had 250cc, 349cc and 500cc engines, and the largest had a 600cc two-stroke twin of their own manufacture giving it a 1/2 tonne payload. Production of all vehicles ceased in 1933, it is believed.
