VARIATIONS

1910:  Type 1 - 1909 dies, pairs           1 -   8000

       Type 2 - 1910 dies, singles      8001 -  11988     (3,988 S)

1911:  Type 1 - Regular dies               1 -  17743

       Type 2 - Thinner dies           18013 -  19536     (1,524 S)

1912-13-14 BASE

1912 Type 1:  Aluminum                     1 -  31765

1913                                  (36310 steel)

1913 Type 2:  Steel, silver back       38209 -  39929     (1,721 P)

1913 Type 3:  Steel, light green back  41158 -

1913 Type 2a                           42007 -  50342     (8,336 P)

     Type 4:  Steel, olive back        52125 -  61947     (9,823 P)

     Type 4:  Black/Goldish silver     54815 -  60022     (5,208 P)

             (54815 steel, olive back)

1914 Type 1a                           65959 -  66817       (859 P)

1915-16-17 BASE  (Changed back to "MINN" when it was discovered

                  that "MINNESOTA" didn't conform to state law)

1915 Type 1:  Aluminum, "MINNESOTA"        1 - 117383

1916 Type 2:  Steel,    "MINNESOTA"   120383 - 136216    (15,834 P)

1917 Type 3:  Aluminum,      "MINN"   139669 - 157185    (17,517 P)

1917 Type 4:  Steel, painted "MINN"   164750 - 167758     (3,009 P)

1917 Type ?  (No central holes)       168723 -

1917 Type 5:  Alum., painted "MINN",

              no central holes        181290 - 190680     (9,391 P)

1918-19-20 BASE

1918 Type 1:  Dated "1918/1919/1920"       1 - 323403

1920 Type 2:  Dated "1920"            325496 - 332164     (6,669 P)

1921:  Type 1 - Round corners, non-serif "7"     A 1 - A141-209,

                (1923-27 dies)              B141-001 - B158-034

       Type 2 - Square corners, serif "7"        B 1 - B141-000

1922:  Type 1 - Large date, 1 3/8" wide letter

                     A 1 - A160-547,      B 1 - B164-284

       Type 2 - Small date, 1 1/16" thin letter

                A161-112 - A175-952, B171-001 - B174-567 (18,408 P)

1925-49:   No hyphen on 4-digit.

1931:      1-5-digit has bottom serif on "1" of date,

           6-digit has no bottom serif.

1935:      2 slots A69-644, B536-291

           4 slots B547-386

1940-48:   1-4-figure has "MINN", 5-figure has thin "MINNESOTA",

           6-figure has wide "MINNESOTA".

1941:      Spacing of numerals in date reportedly varies.

1943 TAB:  400001 and higher reported with non-curly serial.

           16019 - 214803 curly, 497328 - 543173 non-curly.

1944:      1-5-figure normal steel, 6-figure light steel.

1950-54:   4-digit has no hyphen, 1-5-digit has thin "MINNESOTA",

           6-7-digit has wide "MINNESOTA", 7-digit has thinner

           first "1".

1950:  Type 1 - Crimped edge      1 - 949-068

       Type 2 - Flared edge 958-434 - 961-347(950-001 - 965-000 rep.)

1956-64:  Undated 1956, 1958, 1960 and 1962 bases issued in 1957,

          1959, 1961 and 1963-64, respectively.  1957 and 1959

          have no "19" part of date; 1961 and 1963-64 have "19".

1957:  Undated  1D 8736, 1E 9473, 1F 9933, 1K 3566 - 4034, 1M 5168 - 6219,

       1N 5617, 1R 6597, 1U 6500 - 9088, 2F 6094, 2N 5005 - 5297, 2U 7166 - 8879,

       3M 8704, 3R 7240 - 3S 5031, 4X 4126 - 4Z 9996, 5T 2799 - 5U 4773,

       6E 4551, 6H 3656, 6S 6147, 6T 3410, 7C 8041 - 8751, 7H 6565 - 6608,

       7J 5330, 7P 4314, 7S 4597, 7T 3167, 7U 3572 - 5509, 8F 6231,

       8S 8333 - 8782, 9A 9674, 9T 3884                    (50,910 P)

1959:  Undated with thin 1955-58 dies, or thick 1960-73 dies.

      (Thick:)  4Y 1713 - 4Z 8576,

      (Unknown:)2W 4654 - 6017, 3V 9538 - 3W 4340, 5V 1995 - 3126,

                6W 3898 - 4129, 7V 3412 - 4541, 9V 1349    (23,526 P)

1961:  Undated 4I 2076 - 8614, 6V 9867                      (6,540 P)

1963:  Undated 1M 9459 - 9994, 1N 9228, 1R 8404 - 8772, 1T 8482,

       1W 1989 - 1X 6694, 2K 9900, 2L 9042, 2M 6997 - 7045, 2P 6469,

       2W 2099 - 2X 4798, 3I 1742 - 6445, 3P 9155, 3Q 5844 - 7421,

       4I 1663 - 9812, 4O 1652 - 7728, 4Q 2687 - 4Q 8782,

       5L 5501, 5W 4050 - 5Z 9370, 5I 5368 - 8773, 5Q 2139,

       6L 5198, 6W 1116 - 6X 1824,

       7A 8233 - 9326, 7F 9408, 7L 4255, 7P 5421, 7S 4848, 7W 7076 - 7X 1573,

       8J 7296, 8V 5373 - 8W 3724, 9M 5269, 9N 5268, 9V 4463 - 5740,

       M 6436 - M 9773, MQ 3624 - 9738                    (130,091 P)

1965-67:  Tab slot or no tab slot.

1969:  3XB-448 (debossed), 6RP-766 (embossed) have hyphen,

       3XL 815 and all others have none.

1970:  Late issues have embossed legends 1RH 478 - 540, 1SA 439,

       2AV 401 - 998, 2DO 270 - 296, 2UT 414, 2VG 222 - 330, 3TM 494,

       4LI 538 - 4LZ 703, 4PD 703 - 4PR 430, 6EN 508 - 6EP 771,

       6RP-766, 7AO 799                                    (25,260 P)

1971:  Early issues have serif on "71"   1AA 100 - 1AS 194 (14,495 P),

       later issues have non-serif dates 1CJ 827 on.

1971:  Late issues in carbon steel, not galvanized (7DR 452).

1974:  Types 2 and 2a have holes or obround slots.

1987:  001-AAA - 999-BMZ reported with 85 hologram, 001-BNA + with

       86 hologram.

STICKER VARIATIONS

1969:     White/Magenta or White/Red.

1982:     "MINN" above serial, or after serial.

1983:     Blue/White or White/Blue.

1995-97:  Late issues in design of next year's decal.

2002:     Mail issues gold, different design, round corners.