Display device

A display device suitable for illustrating a plurality of interior design schemes or for use as a teaching aid, said device comprising a case, at least two pairs of spools rotatably mounted in said case and extending across the case from one side wall to the opposite side wall, and being capable of limited axial sliding movement relative to said side walls, a roll of material adapted to be wound upon each of said pairs of spools, one of said rolls of material bearing alternative illustrations separated by transparent portions, a plurality of illustrations complimentary to said illustrations on said one roll on the other of said rolls, a window in a wall of said case through which the various alternative illustrations may be displayed with a chosen illustration formed on the said other roll showing through a transparent portion of said one roll and the two rolls being suitably relatively orientated so as to build up a picture visible through said window, and means for rotating each of said spools so as to advance one roll relative to the other as desired in either direction to vary the picture presented at said window, and wherein a magnetic strip is located down one side edge of the case, and a magnetically attractable disc is associated with at least one spool of each pair, the spools being axially slidable away from said magnetic strip to disconnect the magnetic locking arrangement for winding on or winding back the roll, to change the illustration, and being slidable into engagement with said magnetic strip after setting up said illustration, thereby preventing subsequent inadvertent rotation of said spools due to the natural resiliency of rolls of material thereon.