The following information is from the Pape & Kellner Archive
Dotter-Mainz, founder -Dotter, Emil, Gun factory, won a Silver Medal in Cleve. Documented in 1885, 1886, 1887.
The following article about a new Hunting Gun is from the August 1, 1885 edition of the Austrian periodical Jaeger Zeitung.
Below we have a side by side double rifle with 28 inch barrels in 43 Mauser, marked Emil Dotter-Mainz which sold recently on Guns International.
