Do you know of any online articles which elaborate on this theory?the first state coinage was actually intended to generate a distributed supply system for military forces without paying attention to the complex logistical details
unfortunately I don't. rereading Graeber, I also realize that he never explicitly said "the first state coinage", so now I am uncomfortable with claiming such. he was speaking generally about Chartalist theories of states' early efforts to create markets and presenting a hypothetical situation in which it would be beneficial to do so.
I was only able to find this, which is by Graeber also: I've been told about a theory which postulates that markets came about as a way for generals to get rid of their booty in exchange for items which were more useful than the spoils of war, but I can't remember whose theory that was.