Abstract: A stapler for attaching a plurality of sheets of paper, or the like, to each other comprises an elongated anvil member, forming a base, an elongated staple magazine member and an elongated driver member, forming a cover, all pivotally connected, at one end, to each other, there being a detent on the magazine member, a longitudinally slidable latch on the cover member lockable under the detent and the usual longitudinally movable, spring urged staple follower. The staple follower moves the latch to release position, near the end of its path, to indicate that the supply of staples is nearly exhausted.