Ashrak knife is a weapon used by Ashrak.
History
The knife used by a Ashrak who managed to get to the Tau'ri' s Alpha Site. And he used the knife to kill a Tok'ra and Jaffa. Later, after Ashrak was dead so the knife was a kind of symbol of the alliance between the Tok'ra, Jaffa and Tau'ri. (SG1: "Allegiance")