In a banknote storage box (16) of an ATM (1), a front guide (25) is attached to a front door (21) through attachment members (26) at four locations in a front guide attachment section (30). Intervals between faces (32 and 33) positioned on mutually opposite sides of each attachment member (26) are different for each of three attachment intervals LA, LB, and LC. Accordingly, in the front guide attachment section (30), a selected attachment interval LS is able to be adjusted between three steps without exchanging components by just changing the orientation of each attachment member (26) when attaching the attachment member (26).