Abstract: A transparent seal and a pneumatic power system for automatically affixing the seal onto a staple included in a hasp utilized to lock a coin collecting box used in coin activated vending apparatus for impeding unauthorized entry into the box via the hasp to pilfer coins therefrom comprising the seal formed with an aperture in a first plane and a hole in a second plane normal to the first plane and a plunger initially disposed in the hole in a first position or nonlocking state in which both the inner and outer ends of the plunger are located on the same side of the aperture and staple, and an automatic pneumatic power system for disposing the aperture onto the free end of the staple to register the aperture and open space of the staple end with the hole and thereafter for moving the plunger from its first position into a second position or locking state in the hole in which latter position the plunger projects through the registered aperture, open end of the staple and hole to locate the inner end of the plun

Abstract: A fastener for a hasp including a staple and utilized to lock a pay telephone station coin box for preventing unauthorized entry thereinto, and comprising a first element formed in an E-shape or an -shape and having a middle projection positioned in the interior space of the staple for disposing the latter element adjacent to the hasp member attached to the face of the box, and a second element formed with an opening through which the free end of the staple is passed to dispose the latter element exteriorly of the staple with one surface in juxtaposition with an opposite surface of the first element. The juxtapositioned surfaces may be plain or provided with predetermined, mated projections, including the first-mentioned projections, grooves and recesses bonded together to constitute a bielement unitary fastener difficult to remove from the hasp without showing evidence of tampering with the fastener.