Durkopp Adler
Durkopp Adler is a automobile manufacturer or historical motorcycle manufacturer.
Overview
It is associated with Germany. Its recorded seat is Bielefeld. The record gives 1860 as its date of establishment or first appearance. Catalogue entries state maker, model, completeness of accessories and condition. VALÉORINE records this subject so that lots referring to it can be described consistently.
In detail
historical motorcycle manufacturer in Germany
Sources
Each source is named with the standing the house places on it, so the evidence can be weighed rather than taken on trust.
reference work · Reputable secondary · Wikipedia
“Dürkopp Adler”, English Wikipedia, consulted as further reading
Consult the sourcereference work · Reputable secondary · Wikidata
Wikidata, structured authority record Q879289: Durkopp Adler
Consult the source