Plates sizes:
7 1/4" x 5 5/8" (184mm x 143mm)
6 1/2" x 4 7/8" (165mm x 124mm)
5 3/4" x 4 1/8" (146mm x 105mm)
5" x 3 3/8" (127mm x 84mm)
4 1/4" x 2 5/8" (108mm x 67mm)
3 1/2" x 1 7/8" (89mm x 48mm)