it looks Deutscher Luftfahrt Verband (German Aviation Association) but i could be wrong.
Best regards, Patrick
This is a cap insigne for the Schalburg-Korps, i.e. the Danish equivalent of the Germanische SS. I cannot comment on the item's originality, but they are heavily faked.
See here for an example in wear:
Thank you . I made a research on google about Schalburg-Korps and that's it !
Any advice to understand originality of the item ?
Not original to the best of my knowledge.
These have been faked since the 1970's.