rare footage from an unknown private film

This is said to be a rare footage from an unknown private film collection archive, that supposedly shows objects and ancient devices that were discovered and then taken away during the Nazi expeditions in Egypt and Antarctica, which are still shrouded in the secrecy.

I do know for a fact that many artifacts have been looted in previous wars but I have never seen anything like this before, it will be very interesting to hear how they will explain this.