To be honest I have never seen one, either a fantasy buckle or it could be a home made sympathisers buckle
Judging by the lack of detail and the bad finish;I go by the same opinion as Ben .
Always looking for Belgian Congo stuff!
It could even be a forestry buckle or another units buckle bashed out and a swastika soldered on, whether done period or not I dont know just MO
I think i've seen a photo of a Freikorps member wearing something similar, if i find the photo i'll post it.
It's a wasted trip baby. Nobody said nothing about locking horns with no Tigers.
I'm Spartacus, not really i'm Paul!...
My opinion.WWI german Officer Buckle with homemade swastika.