Stephen Baldwin's pistol originally appears to be a Sig Sauer, then it is a Beretta when he is "gearing up" to investigate the intruders, then switches back to the Sig Sauer when it is taken away, and to the Beretta yet again when he takes it back, and is a Sig Sauer when he vanishes through the time portal
The supposedly Mesopotamian stones in the museum at the beginning feature carved Viking Futhark runes.
The so called Doctor mentioned Mesopotamians but the symbols carved in the Obelisk are Elder Futhark runic alphabet from early Celtic England.