Abstract: A combined automatic pet waterer and feeder. A water dish portion is designed to receive the neck of a commonly available soft drink bottle for a storage tank. Water flows from the bottle through a bottle-holding support portion into a water reservoir section for drinking by an animal. A food dish portion has a food container support section and a food reservoir section for receiving food from the food container support section. The food container support section is adapted for receiving one of a variety of commonly available containers. The food dish has an inner wall with a shelf extending therefrom and a ring spaced inwardly from the inner wall. In one embodiment, the ring has a threaded inner surface adapted for threaded engagement with the mouth of a container in which pet food is sold. In another embodiment, the recess is adapted for receiving an open lower end of another type of container, such as a typical coffee can.

Abstract: A voucher resistant to tampering, having self-contained means for verifying the authenticity of said voucher. At least two correlated identifying indicia are applied to the top surface of the voucher substrate. A layer of release coating is applied over one identifying indicia, and a cover layer (preferably opaque) of removable coating is applied over the release coating layer. The relative adhesive qualities of the layers are selected to render ordinary use of the voucher easy but tampering difficult.