YEAR Approximate Serial Number Range
1920 to 1925 1-100
1926 101-249
1927 250-999
1928 1000-1199
1929 1200-1449
1930 1450-1499
1931 1500-1999
1932 2000-2099
1933 2100-2149
1934 2150-2189
1935 2190-2199
1936 2200-2299
1937 2300-2349
1938 2350-2399
1939 2400-2469
1940 2470-2499
1941 2500-2525