Buy an original cap badge of a tower emblem for the U-Boat 106 crew,German Kriegsmarine ww2

Original cap badge of a submarine of the Kriegsmarine. Board manufacturing. Unfortunately I could not determine to which submarine the badge belonged. Original 2nd World War.

Brass. With aging traces. No oxidation. For sewing on the cap.

Size: 3.3 x 3 cm

Puzzle solved: It belongs to U 106