Another hypothesis is that they represent something different from what people actually believe. When an antique coin was discovered in Egypt, this is what transpired.
The mask painted on the coin, according to some who have seen it, is said to represent an alien creature that was modeled after another species. The oddest coin to ever be discovered has this as its motto. Another illustration is a coin with a UFO inscribed on it.
These things constantly raise questions since they haven’t been established yet. Another coin discovered in 1680 has compelling evidence that UFOs exist and have visited our planet, at least according to popular belief.
In the same way, as in every instance, there are people who consider that this is concrete evidence, but there are also those who maintain that these are simply oval shields that troops used to defend themselves. We merely need to wait for the researchers’ conclusions.