| TONGA 1964 Women's Association Conference FDC |
| Indonesia 1956 Students Conference set registered FDC |
| Indonesia 1955 Conference set FDC |
| INDONESIA, Asian African Student Conference FDC 1956 |
| Kenya 1982 ITU Conference on illust FDC SG 247-250 |
| NIGERIA 1962 #123-27 Lagos Conference issue on FDC |
| PHILIPPINES 1948 #522-24, C67 FAO Conference issue FDC |
| SPAIN 1963 #1169 Int'l Postal Conference issue on FDC |
| TOGO 1960 #382-85 Summit Conference issue FDC |
| EGYPT 1958 #455 Afro-Asian Economic Conference FDC |
| FRANCE 1963 #1064 Int'l Postal Conference issue FDC |
| European Conference Helsinki 1975 - Dove Yugoslavia FDC |
| Europa Conference Dove - Yugoslavia FDC |
| Balcan Conference Yugoslavia FDC |
| CANADA ~ 1932 'OTTAWA CONFERENCE' - FDC |
| 1958 C52 Postal conference FDC a little yellow |
| GB 1961 PARLIAMENTARY CONFERENCE FDC |
| 1952 All-Russian Conference Pair FDC |
| EDUCATION CONFERENCE FDC 2003 CYPRUS NO ADR DESCRIPTION |
| 928 M-3 United Nations Conference 1945 FDC Staehle |