Ed/Primoz,
The Do 11, which is a Ju 86, (
http://cgi.ebay.de/ws/eBayISAPI.dll?...em=6194660558) originates from Bordfunkerschule Halle - see Ketley/Rolfe "Luftwaffe Emblems" and Ries "Photo Collection Luftwaffe Embleme 1939-45". This emblem is described in both as "the city's coat of arms combined with the it's market place skyline".