Carburator made by Arthur Haendler, Berlin

This carb has been made by the company Arthur Haendler, Berlin NW 40, Heidestrasse 52. Identification Nr. 42 DHRO respective D 9962. I don't know the application, somebody means it has been used on AGA automobiles type 'A'. The company built and sold carbs in license to Solex from 1913 to 1925, then they have been bought by Pierburg. I'm interested in information and realistic offers.