the window is not shown in order to view the window frame elements the window 10 includes the frame defined by a pair of vertical frame members 12 that are interconnected by a horizontally extending upper frame member 14 and a horizontally extending lower frame member 16 or sill an upper sash 18 and lower sash 20 fig2 are sized to fit within the frame so that both the upper and lower sash may slide in a vertical manner within channels formed within the vertical frame members 12 the vertical frame members define the lateral sides of the window the upper sash 18 may be of a standard construction to include a pair of spaced vertical supports 22 and 24 which are interconnected by upper and lower horizontal supports 26 and 28 the construction of the lower sash may be the same as the upper sash accordingly the lower sash also may include a pair of spaced vertical supports 30 and 32 interconnected by horizontally extending upper and lower supports 34 and 36 any desired decorative design can be used for the window elements which are supported within the upper and lower sashes in the example shown in fig1 the upper and lower sashes each include one or more glazing supports 38.