1908 4-DIGIT Metal, with each number on a different piece. From Donna Otto	1908 From Drew Steitz on PL8S.COM	1909 First porcelain issue
1910	1911	1912
1913	1914	1915
Starting in 1916, plates were steel, and approx. 15 x 8 inches in size. The numbering scheme was simple - all numeric - except for 1917, where some A0000 plates were issued.		1916
1917	1917	1917 After 99999, an "A" prefix was used.
1918	1918	1919
1920	1921	1922
1923	1924	1925