DIMENSIONS
1913  6 1/4" x 15 1/4"
1914  6 1/4" x 14 3/4"
1915  6 1/8" x 14 7/8"

1916      1 -  9999         6" x 15"
      10000 - 19999 TYPE 1  6" x 16 3/4"
      10000 - 19999 TYPE 2  6" x 16"

1917      1 -  9999  6" x 15"
      10000 - 19999  6" x 16"
      20000 - 29999  6" x 17 1/4"

1918          6"     x 15"
1919-22       4 1/2" x 12"  
1923          4 7/8" x 12 7/8"
1924          4 7/8" x 13"
1925-27       5 1/2" x 11 1/2"
1928          5 1/2" x 13"
1929-31       5 1/2" x 12"
1932          5 7/8" x 12 3/8"
1933-34       6 1/4" x 13 1/2"
1935-36       6"     x 13 1/2"
1937-46       5 1/2" x 12"
1947          5 7/8" x 12 3/4"
1948          6 1/8" x 13 1/8"
1950-51       5 1/2" x 12"
1953-present  6"     x 12"      (Standard bolt spread 1957-present)

1943          WINDSHIELD STICKER  3 1/4" x 5 1/4"
1944          WINDSHIELD STICKER  3 1/4" x 5"
1949-52       TABS                1 1/4" x 1 13/16"
1969-86       STICKERS            1"     x 1 1/2"
11/86-present STICKERS            1"     x 2"