A device for storage and display of small, generally planar articles such as coins or the like, comprises one or more generally planar compartments for displaying a face of one or more articles. The articles are held in a cavity, preferably a closed, dust-tight cavity, of a generally planar article holder...http://www.google.es/patents/US5191972?utm_source=gb-gplus-sharePatente US5191972 - Storage and display device for coins and the like
