Question: The DUX-53 and DUX-59 were submachine guns designed at the Oviedo Arsenal in which country, a large number of these weapons were produced for the West German Border Guard, and was later licensed to be produced by Anschütz and Mauser, a German arms manufacturer?
Sentence (from "Mauser"): In the late 19th and early 20th centuries, Mauser designs were also exported and licensed to a large number of countries which adopted them as military and civilian sporting firearms.
Relevant evidence: No