DIMENSIONS
1911       2-digit  7 1/4" x  8 3/4"
           4-digit  7 1/4" x 10 3/4"
           5-digit  7 1/4" x 12 3/4"

 

1912       3-digit  7"     x  8 1/2"  (Front)

           3-digit  7 1/2" x  8 1/2"  (Rear)

           4-digit  7 1/4" x 10 3/4"  (Rear)  (Verify Front)

           5-digit  7 1/4" x 13"      (Front and Rear)

 

1913       4-digit  7"     x 11 1/4"  (Front)

           4-digit  7 1/4" x 10 3/4"  (Rear)

           5-digit  7"     x 12 3/4"  (Front)

           5-digit  7 1/4" x 12 3/4"  (Rear)

1914-15    2-digit                    (Verify 1915)

           3-digit  7 3/8" x  9 7/8"  (Verify 1914)
         4-5-figure 7 3/8" x 14 1/4"

1916-19    2-digit  5 5/8" x  6 1/2"  (Verify 1916, 1918)
           3-digit  5 5/8" x  8 5/8"
           4-digit  5 5/8" x 10 5/8"
           5-digit  5 5/8" x 13"
           6-digit  5 5/8" x 15"

 

1920       3-digit  5 3/8" x  8 7/8"

           4-digit  5 3/8" x 10 7/8"

           5-digit  5 3/8" x 13"

           6-digit  5 3/8" x 15"

 

1921       2-digit  5 1/2" x  7"

           3-digit  5 1/2" x  8 7/8"

           4-digit  5 1/2" x 10 7/8"

           5-digit  5 1/2" x 13"

           6-digit  5 1/2" x 15"

1922-33  1-2-digit  4 3/8" x  6"      (Verify 1922, 1924-33)
           3-digit  4 3/8" x  7 5/8"  (1922-27)
           3-digit  4 3/8" x  7 3/4"  (1928)
           3-digit  4 3/8" x  7 7/8"  (1929-33)

           4-digit  4 3/8" x 10 1/8"  (1922)
           4-digit  4 3/8" x 10"      (1923)
           4-digit  4 3/8" x  9 1/4"  (1924-26)
           4-digit  4 3/8" x  9 3/8"  (1927-28)

           4-digit  4 3/8" x  9 1/2"  (1929-33)
           5-digit  4 3/8" x 11 3/4"
           6-digit  4 3/8" x 13 1/2"
           7-digit  Same as 6-digit   (1925-32)
           7-digit  4 3/8" x 13 3/4"  (1933)

1934-35  1-3-digit  5 1/2" x  7 1/2"  ("ILL-34")
           4-digit  5 1/2" x  9"      ("ILLINOIS-34")
           5-digit  5 1/2" x 10 1/2"  ("ILLINOIS-1934")
         6-7-digit  5 1/2" x 12"      ("ILLINOIS-1934")

1936     1-3-digit  5 1/4" x  5 7/8"  ("ILL-36")
           4-digit  5 1/4" x  7 1/2"  ("ILL-1936")
           5-digit  5 1/4" x  9 1/2"  (thin "ILLINOIS-1936")
         6-7-digit  5 1/4" x 11 1/4"  (wide "ILLINOIS-1936")

1937     1-3-digit  5 3/8" x  5 3/4"  ("ILL", not "ILLINOIS")
           4-digit  5 3/8" x  8"      (Thin legends)
           5-digit  5 3/8" x  9 3/8"  (Thin legends)
           6-digit  5 3/8" x 11"      (Wide legends)
           7-digit  5 3/8" x 11 1/4"  (Wide legends)

1938-42  1-3-digit  5 1/2" x  6 3/4"  ("ILL", not "ILLINOIS")
           4-digit  5 1/2" x  8 5/8"  (Thin legends 1940-42)
           5-digit  5 1/2" x  9 1/2"  (Medium legends 1940, thin legends 1941-42)
           6-digit  5 1/2" x 11 1/4"  (Wide legends 1940-42)
           7-digit  5 1/2" x 11 3/4"  (Wide legends 1940-42)

1943     1-3-digit  5 1/4" x  6 3/4"  ("ILL. 43")
           4-digit  5 1/4" x  8 3/4"  ("ILLINOIS 43")
           5-digit  5 1/4" x  9"      (Same)
           6-digit  5 1/4" x 11"      (Same)
           7-digit  5 1/4" x 11 1/2"  (Same)

1944-45  1-3-digit  5 1/4" x  6 3/4"  ("ILL.44")
           4-digit  5 1/4" x  8 3/4"  ("ILL. 44")

         5-7-digit  5 1/4" x 11 1/2"  ("ILLINOIS 1944")