Stamps of United States, 18 base day
1 to 50 of 179
postage
1902, Nov 18 1902 issue wmk. double line USPS (20 stamps)
| X | 1c | blgrn | Franklin, p. 12 (1903) | |||
| - | 1c | blgrn | Franklin, imperf (1906) | |||
| - | 1c | blgrn | Franklin, p. 12h (1908) | |||
| - | 1c | blgrn | Franklin, p. 12v (1908) | |||
| X | 2c | car | Washington, p. 12 (1903) | |||
| X | 3c | brtvio | Jackson, p. 12 (1903) | |||
| X | 4c | brn | Ulysses S. Grant, p. 12 (1903) | |||
| - | 4c | brn | Ulysses S. Grant, imperf (1908) | |||
| X | 5c | bl | Lincoln, p. 12 (1903) | — | — | |
| - | 5c | bl | Lincoln, p. 12h (1908) | |||
| - | 5c | bl | Lincoln, imperf (1908) | |||
| X | 6c | cl | James A. Garfield, p. 12 (1903) | — | — | |
| X | 8c | vioblk | Martha Washington, p. 12 | |||
| X | 10c | paleredbrn | Webster, p. 12 (1903) | 10.–100 | .30–1.00 | |
| X | 13c | purblk | Benjamin Harrison, p. 12 | |||
| X | 15c | olgrn | Henry Clay, p. 12 (1903) | 10.–100 | 1.00–10. | |
| X | 50c | org | Thomas Jefferson, p. 12 (1903) | 100 – 1,000 | 10.–100 | |
| X | $1 | blk | Farragut, p. 12 (1903) | 100 – 1,000 | 10.–100 | |
| - | $2 | dkbl | Madison, p. 12 (1903) | 100 – 1,000 | 100 – 1,000 | |
| - | $5 | dkgrn | Marshall, p. 12 (1903) | 1,000 – 10,000 | 100 – 1,000 |
1912, Mar 18 1912c 8.5h issue wmk. single line USPS p. 8.5h
| X | 1c | grn | Washington | |||
| X | 2c | car | Washington, v. 1 |
1912, Mar 18 1912d 8.5v issue p. 8.5v
| X | 1c | grn | Washington | |||
| X | 2c | car | Washington, v. 1 |
1925, May 18 Norse-American issue unwmk p. 11
| X | 2c | car & blk | sloop Restaurationen | |||
| X | 5c | dkbl & blk | Viking ship replica |
1926, Oct 18 Battle of White Plains 150th issue
| X | 2c | carrose | Alexander Hamilton’s Battery by Edmund Franklin Ward | 1.00–10. | 1.00–10. |
1932, Aug 18 p. 10v
| X | 6c | dporg | James A. Garfield |
1937, Aug 18 p. 11
| X | 5c | graybl | Virginia Dare |
1937, Oct 18 territorial issue
| X | 3c | dkvio | Hawaii, p. 10.5x11 | |||
| X | 3c | dkvio | Alaska - Denali, p. 11x10.5 | |||
| X | 3c | brtvio | La Fortaleza, Puerto Rico, p. 11x10.5 | |||
| X | 3c | vio | Charlotte Amalie, Virgin Islands, p. 11x10.5 |
1939, Feb 18 Golden Gate Expo issue p. 10.5x11
| X | 3c | brtpur | Tower of the Sun |
1955, Sep 18 Fort Ticonderoga 200th issue p. 11x10.5
| X | 3c | brn | Fort Ticonderoga |
1960, Feb 18 Winter Olympics 1960 issue p. 10.5x11
| X | 4c | dlbl | Olympic rings & snowflake |
1960, Apr 18 p. 11
| X | 4c | brnorg & dkbl & grn | water dripping from leaf & reservoir |
1960, Oct 18 Boys' Clubs of America 100th issue
| X | 4c | multi | Profile of Boy |
1968, Oct 18
| X | 6c | multi | John Trumbull |
1972, Mar 18 family planning issue
| X | 8c | multi | family |
1974, Apr 18 EXPO '74 issue
| X | 10c | multi | Cosmic Jumper & Smiling Sage |
1976, Aug 18 Clara Maass 100th issue
| X | 13c | multi | Clara Maass |
1976, Sep 18
| X | 13c | dkgray | Adolph Ochs |
1978, Oct 18 Christmas 1978 issue
| X | 15c | multi | child on Hobbyhorse | |||
| X | 15c | multi | Madonna by Robbia |
1981, Jun 18 Professional Management issue
| X | 18c | bl & blk | Joseph Wharton |
1983, May 18 TVA 50th issue
| X | 20c | multi | Norris Hydroelectric Dam |
1985, Jul 18
| X | 22c | multi | Auguste Bartholdi & Statue of Liberty |
1990, Jan 18
| - | 25c | multi | Love doves & heart, p. 11.2bk | |||
| X | 25c | multi | Love doves & heart, p. 12.75x13 |
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