These 3 artifacts are so mysterious for official scientists that they do not even undertake to describe them. They are kept under glass without any description or explanation.
Techies can immediately notice that they strongly resemble gears.
The origin of these artifacts can only have 2 logical explanations. Either these are originals from the designs of an unknown highly developed civilization, or they are models of the Egyptians.
Whichever side you look at, the artifacts are very interesting and mysterious. If even archaeologists and historians could not come up with an approximate purpose, then this is a serious case.
It is also good that they were not called ritual artifacts or some kind of vases. Egyptologists have a bad habit of not being able to accurately explain the purpose of an object, they quickly refer it to ritual purposes.
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I will add one more moment that these artifacts were found in single copies. If they were massively used in any works by the ancient Egyptians, then there should be many more finds.
Since the shape of the artifacts does not raise doubts about their technical purpose, the version with an unknown highly developed civilization seems no longer so alternative.
I found information about these artifacts on the forum of the Laboratory of Alternative History; I have never seen more information about him anywhere.