I agree with the 76. The eagle is important te see. The Hanseaten kokarde was, after a date which I cannot remember now, worn only by Lübeck, I have an M15 with the correct Hanseaten kokarde. IR 162. Before that date, which I cannot remember now, it was indeed worn by Hamburg, Bremen and Lübeck.I also prioritise 76. But in this case, Prussian eagle of the line, frontal, and cockade with red iron cross (Hamburg).