Oh, come on now!
Of course they find extraterrestrial items from Egypt. After all, wasn't it aliens that built the pyramids with their marvelous preservative powers and anti-gravity technology? Not to mention that time line in the Great Pyramid that correctly predicts the end of the world in, uh, 1999? (Well a small percentage of error there, maybe).
They probably made that knife from an extraterrestrial Spam can dropped by one of the aliens working on the pyramids.
Biting the hand that feeds IT
