disk 6 and wall surface 4 it will be further observed that notches 8 may be used to align the wall mount member 2 and hence the associated picture at a particular desired angle this feature may be desirable in modern picture groupings where the pictures are intentionally hung askew the construction of picture mount member 3 is illustrated in fig3 and 4 this member is formed by a rectangular shaped relatively thin plate 15 having a centrally located semi circular cut out 16 of just slightly greater diameter than the outer diameter of circular rib 12 as best shown in fig3 the upper portion of cut out 16 is provided with a rectangular shaped notch 17 dimensioned to be slightly greater than key portion 14 of wall mount member 2 the side and top peripheral edges of rectangular shaped plate 15 are provided with an inwardly directed flange 18 having a height just slightly greater than the thickness of disk 6 picture mount member 3 is provided with a plurality of mounting holes 19 for attaching the wall mount member to the rear surface or frame of a picture or the like by nails screws etc in addition the member is provided with a pair of larger mounting holes 20 located in the upper corners of rectangular.