Kriegsmarine tombak U-boat war badge, unmarked and regilded ww2

U-boat war badge without manufacturer's mark and post war gold-plated by the jeweler.

The needle hinge is soldered horizontally, the needle hook is soldered directly. Non-ferrous metal. Swastika without breakthroughs. Bulbous needle. Probably Hymmen & Co.

Material: Tombak

Weight: appr. 28 gr