| year |
first day |
country |
scott # |
agency |
conference |
conference dates |
conference city |
| 1945 | 25-apr | united states | 928 | un | un conference on international organization | 25 apr-26 jun 1945 | san francisco |
 |
| 1946 | 10-oct | egypt | c38 | icao | picao middle east regional air navigation meeting | 1-18 oct 1946 | cairo |
 |
| 1946 | 19-nov | france | 572 | unesco | 1st unesco general conference | 19 nov-10 dec 1946 | paris |
 |
| 1947 | 12-jan | venezuela | 395, c228-231 | who | 12th pan american sanitary conference | 11-24 jan 1947 | caracas |
 |
| 1947 | 7-may | france | 581-584, c22 | upu | 12th universal postal congress | 7 may-5 jul 1947 | paris |
  |
| 1947 | 16-may | united states | 17t1-17t3 | itu | world telecommunications conferences | 16 may-2 oct 1947 | atlantic city |
 |
| 1947 | 24-nov | philippines | 516-518, 516a-518a | ecafe | 2nd session, ecafe | 24 nov-6 dec 1947 | baguio |
 |
 |
 |
 |
| 1948 | 23-feb | philippines | 522-524, c67 | fao | 1st fao far east regional conference | 23 feb-13 mar 1948 | baguio |
 |
 |
| 1948 | 21-sep | france | 605-606 | un | 3rd un general assembly | 21 sep-12 dec 1948 | paris |
 |
| 1948 | 23-nov | lebanon | 220-224, c148-149 | unesco | 3rd unesco general conference | 17 nov-11 dec 1948 | beirut |
 |
 |
 |
 |
 |
| 1949 | 29-apr | uruguay | 579-580 | ilo | 4th ilo regional conference for the americas | 25 apr-10 may 1949 | montevideo |
 |
| 1949 | 13-jun | france | 625-628, c28 | itu | international telephone and telegraph conference | 18 may-4 aug 1949 | paris |
  |
| 1949 | 13-jun | italy | 522 | who | 2nd world health assembly | 13 jun-2 jul 1949 | rome |
 |
| 1949 | 15-jun | finland | 281-182 | fao | 3rd world forestry congress | 7-20 jul 1949 | helsinki |
 |
