VARIATIONS

1920:  Type 1 - 1919 dies         5-341 - 49-961 (44,621 P)

       Type 2 - 1921 dies        52-262 - 54-343  (2,082 P)

1927:  Type 1 - 1927 dies 1 - 1000, E-1 - P-2884 (63,878 P)

       Type 2 - 1926 dies       P 8-502 -  V 900 (32,395 P)

1929:  Narrow or wide legend.

1936-47:  1-4-digits have no hyphen, abbreviated "DIST.".

3-31-43:  Type 1 - Closed "4" of date 57-221 - 178-700

(1943)    Type 2 - Open "4" of date  187-451 -

(1944)    Type 1a                    193-651 - 215-478 (21,828 P)

3-31-47:  163-883 is stamped over old plate.

(3-31) 48 TAB:  Type 1 - "48" far left, horizontal serial 41424 - 41858

                Type 2 - "48" far left, sideways serial 43031 - 52607,

                                                       118976, 138301

                Type 3 - "48" mid-left, sideways serial 64164, 67962,

                                                        87008, 100237

3-31-58:  Type 1:  Obround holes  AG-719 - AN-172, EE-171 on

          Type 2:  Long slots     AV-124 - EA-865

3-31-61:  Type 1:  Medium gauge steel  ET-983, GL-686 (about 6 oz.)

          Type 2:  Heavy gauge steel   GB-674         (about 10 oz.)

3-31-62:  Type 1 - Medium gauge steel  AA-100 - WR-912 (about 6 oz.)

          Type 2 - Heavy gauge steel   WS-709 - WV-835 (about 10 oz.)

3-31-66:  Type 1 - Small slogan, lower height than dates  1AA01 - 9LZ41

          Type 2 - Large slogan, same height as dates     1MA18 - 2MH50

         (All, including 3MD76 and 7MG13, have obround holes except

          2ME80 which has round holes)

1976-77:  Late stickers have smaller serials (Andree).

1997:     845-721, AA-8335 graphic sheeting,

          851-903, AA-4847 plain white sheeting.

2003:     BK-1040 is Type 5; BK-3476 is Type 4.