It is possible that the coin from 1937 show visiting aliens on planet earth? According to many ufologist alien’s facial just such evidence.
Ufologist Scott C. Waring UFO Sightings Daily in hopes that coin is proof that the UFO was at that time an important phenomenon and it is also shown on the coins.
A group of people who worked on the renovation of a house in southern Egypt found a number of very rare coins.
They are unique in its kind that curiously have no images of a strange human figure.
So far no one could explain the origin of these parts. “
I leave to your criteria, draw their own conclusions.