I’m a newbie so please be gentle

A friend of mine is in need of help and I’ve agree to help him. He has a HUGE German collection with at least 10, guaranteed genuine crusher caps and peaked caps. Some were bought in the sixties!

I’ll put a few pics on at the bottom just for you to see I’m genuine.

He wants to sell them and wanted me to sell them on ebay. I thought I could but I’ve just seen their policy on Nazi items and now had a lightbulb moment and realised that I cant. Where would you sell these types of things these days? just dealers?

many thanks in advance

some examples:-
Attachment 139964