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    MONTANA

     

    1913-14 is undated.  Truck began 1922.

     

    1913-14     1 - 10444                       1924    37 -   69914*

    1915      100 - 14366                       1925     1 -   81744

    1916      100 - 24191                       1926    70 -  89-986

    1917        1 - 41612                       1927    80 -  94-900

    1918       18 - 50591                       1928   975 - 102-563

    1919       57 - 57890                       1929   209 - 114-716

    1920      751 - 60284                       1930   320 - 106-886

    1921     -580 - 56856                       1931     8 - 102-377

    1922      246 - 54843                       1932     1 -  86-217

    1923      417 - 65460                       1933     4 -  82-698

     

     

     

    1934-75     1-1 -  9-9999     County codes on County Code page.

               10-1 - 56-9999     County codes also on tabs 1954-66.

                                 (Verify 1943 tab serial)

    1937      1-11766

    1959-62   20-58 A, 20-264A

    1963-66   20-A384, 20-B000, 20-C195

    1968-69   20-A1 reported

    1970-72   12-A1 - 12-A850

    1973-74   12-A1 - 12-A400

     

    County codes assigned by vehicle registrations.

    Silver Bow (1) registered 9,312 1934, 10,511 1935; Yellowstone (3)

    also passed 10,000 in 1935.

     

     

    1976-91 BICENTENNIAL BASE

    1976  "JUN 76"   1-1 - 9-999999    County codes same as 1934-75.

                    10-1 - 56-99999    Replaced 1991.

     

     

    1988-96 CENTENNIAL BASE            No I,O,Q used.

    Jan.87  "1 88"   1AAA1 - 9ACZ99    Optional extra-cost issue.

                     10AA1 - 56AJ99    Replaced July 1995 to June 1996.

     

     

    1991-2001 SKY BLUE BASE                      No I,O,Q,R,V used.

    1-2-91  "7 91"   1P-1A - 9P-9999Z            Replaced March 2000 to

                     10-1A - 56-9999Z            February 2001.

     

    2000            3P-1AA - 3P-127AB added (1,126 P)

     

     

    2001-06 BASE                                 All letters used.

    3-1-2000          1-A1 - 9-C99999            Replaced 2006, except

                     10-A1 - 56-F9999            "PERM" registrations.

     

     

    2006-10 BASE                                 All letters used.

    2006  "12 06"     1C-1 - 9C-99999, 1C-1A - 1C-9999Z

                      10-1 - 56-99999            Replaced 2010.

     

    LETTER SERIES

    12/20/06   3C-1A - 3C-6679G   (3C-0628L reported - leading 0?)

    11/23/07   4C-1A - 4C-3748D

    3/13/08    7C-1A - 7C-4531B

    8/28/08    6C-1A - 6C-8667A

     

     

    2010-17 BLUE BASE                            All letters used.

    2010 "JUN 10" 1-00001A - 9-99999C

                  10-0001A - 56-9999F

     

     

    OPTIONAL BASES                               No I,O seen.

    All are flat and use combined numbering system:  AAA-001 - BSU124

    Hyphen and space removed at ALZ series.