Abstract: An apparatus for storing, dispensing and keeping track of articles, such as keys, has a plurality of compartments for the articles arranged in a cylindrical array, with openings, one for each compartment, being arranged on the surface of the cylinder. The apparatus is in a protective cabinet or housing. An access port arrangement is moveable in a slot in the cabinet parallel to the longitudinal axis of the cylinder and means are provided for rotating the cylinder and for moving the access port mechanism so that the access port can align with a selected one compartment to permit access to that compartment only at any one time. Control means, such as a computer, controls the rotating and the access port moving means so that, by identifying each article by a unique value, and dedicating an individual compartment to each separate article, the compartment specific to that article is accessed as required. A hierarchical access system for persons using the apparatus is also described.