For now I see no relationship between Rudolf Berger Cöthen and Louis Konstans Berger, son of Karl Ludwig Ferdinand Berger & Catharina Wilhelmine Klingholz, who married Luise Harkort, daughter of Friedrich Wilhelm Harkort(Father of the Ruhr - Magnate) in 1856. This was a couple years after he hung out his shingle reading Carl Berger & Co. Seems manager Augustus Henry Murray Driver provided the links to world wide sourcing of their tube steel and was sourced in 1878 for the Martini-Henry platform by Romania(Rumania).
Wilhelm Collath(born in Kreis Greifenberg, Pommern(Poland)) was the one that coupled the Rudolf Berger platform(Dreyse-Berger-Fürst Pless-Teschner-Collath variant) and Wittener Excelsior steel of Karl Berger.
Kind Regards,
Raimey
rse
