Oakleaf wuzzit enamel pin

[CollectRussia]

Any ideas what this oakleaf insignia symbolizes? The red white and black colors plus the Bonn maker mark on the reverse would place it 3rd Reich period. Thank you.

[James Noble]

It could be sports related as the oak leaf was used in that area like in this sportsbook or as a stand alone item.

[Patrick W]

My guess would be that it's a divisional or unit emblem.