i would assume its already being covered with a few simple stipulations but i cant find anything
its something that can be fixed pretty easily but still worth mention
the Field Scrivener’s Desk produces 50 sheets of paper per day and with time being unspecified one could just get infinite money. of course this is easy fixed with a simple can not be used outside an adventure
i suppose the same thing can be said of the robe of infinite twine but that would likely need an additional cant sell the rope stipulation. (the robe of infinite twine is a great item so much rope to help you on your adventure)