one illustrated and to be described in more detail presently so further description of it is not necessary for a complete understanding of the invention referring now to fig2 5 the clip assembly 12 comprises a clip support generally designated 21 and best seen in fig2 and a clip generally designated 22 in fig3 5 the clip support 21 has a general channel shape including a generally flat front plate 25 a rear plate 26 and an interconnecting side portion 28 the top and bottom of the rear plate 26 are cut to form upper and lower hinges 29 the distal ends of the hinges are bent inwardly to form feet 30 the supports are assembled to the panel by placing the support over the border and pressing the hinges inwardly until the feet 30 are embedded in the panel as seen in fig9 and 10 the rear plate 26 includes a first generally rectangular die cut aperture or slot square 35 at one side of which a tab 36 is struck to extend outwardly a second slot 38 is formed spaced from the slot 35 the slot 38 includes a generally rectangular slot portion 39 which is in lateral register with a side of the slot 35 and a lead in slot portion 40 which extends at an acute included angle from the aperture 39 and is located on the side of aperture 39 in which the aperture 35 is formed preferably the longer sides of the rectangular slot 40 are parallel to a diagonal of the square slot 35 referring now to fig3 9 and 10 the clip 22 includes five flat sides formed in.