Most soldiers bring home weapons as war booty....................
Someone cut the head off, so, it counts.
In past decades, a bunch of tourists and whatnot (whonot?) got waylaid by creepy locals selling bits of mummies they’d plundered. The Grand Rapids museum has a mummy head bought from an Egyptian guy who followed a Grand Rapidian (if memory serves, it was Kendall) around all day demanding money for it.
A previously unwrapped, identified mummy was conserved back in the 1990s, thanks to donations, and while that was being done, the anonymous head was also conserved. Both were CAT-scanned and reproduced forensically, ironically preserving them in an identifiable way.
https://www.mlive.com/entertainment/grand-rapids/2015/02/grand_rapids_public_museum_egy.html
In Boston, another example of a severed mummy head is found, but a tentative ID was at least available: