| CPC A47G 1/0611 (2013.01) [A47G 2001/0666 (2013.01); A47G 2001/0677 (2013.01); A47G 2001/0694 (2013.01)] | 21 Claims | 

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               1. A frame assembly for displaying a flat article, the frame assembly comprising: 
            a stack comprising a transparent window panel; 
                a frame comprising: 
                a floor structure for supporting the stack, the floor structure comprising a floor having an inner edge and an outer edge and an inner annular wall extending upwardly from the inner edge of the floor to a top edge of the inner annular wall, the stack being configured to be positioned atop of and in contact with the top edge of the inner annular wall; and 
                  an outer annular wall extending from the outer edge of the floor, the outer annular wall comprising an outer surface defining a periphery of the frame, an inner surface defining a display cavity, and a front edge that defines a display opening, wherein the stack is configured to be positioned within the display cavity via the display opening; and 
                wherein the outer annular wall comprises a thickness measured between the inner and outer surfaces of the outer annular wall, and wherein the thickness of the outer annular wall is non-uniform. 
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