| 20th UNIVERSAL POSTAL CONGRESS SHEET #2438 MNH |
| United States 1989 #2438, 20th UPU Congress Sheet MNH |
| 6c BOTANICAL CONGRESS ISSUE MNH SINGLE SCOTT #1377 |
| 6c BOTANICAL CONGRESS ISSUE MNH SINGLE SCOTT #1379 |
| US 1969 Botanical Congress Set Sc# 1376-9 MNH |
| US 2004 Library of Congress Plate Block PB 4 Stamps MNH |
| BOTANICAL CONGRESS~#1376-79~MNH BLOCK OF (4)~U.S.Stamps |
| 2004 Library of Congress ~ Plate Block MNH |
| 1st CONTINENTAL CONGRESS~#1543-46~MNH BLOCK ~U.S.Stamps |
| Plate Block of 1989 20th UPU Congress #2434-37 MNH OG |
| 2434-37 20th UPU CONGRESS, TRADITIONAL MAIL 25c MNH PB |
| 21st World Road Highway Congress Malaysia MNH Stamp |
| CHINA TAIWAN 1983 JCI Congress #2386-7 MNH |
| North Vietnam 1958 Official Worker Congress MNH |
| CHINA TAIWAN 1983 Heart Congress #2388-9 MNH |
| ARGENTINA/STAMPS 2004 - 3º INT.CONGRESS OF THE..., MNH |
| Yugoslavia 1971 com. congress SS Mi.Nr.1418-1419 MNH |
| Australia 1999 sydney int'l congress exhib SG1903/6 MNH |
| CANADA '06 LABOUR CONGRESS IMPR BL MNH |
| Full Sheet Unitrade # 371 Pl 2 LL "UPU Congress " MNH |
| Full Sheet Unitrade # 371 Pl 1 LL "UPU Congress " MNH |
| PRChina 1954 C29 1st Nat'l Congress (2v Cpt) MNH |
| CHINA 1994-19M 4th CONGRESS OF CHINA PHILATELIE S/S MNH |
| PRC 1954 C29 Sc#237-238 ELECTION CONGRESS MNH |
| PRC 1957 C42 4th Congress of WTU MNH |
| Syria, Arab Lawyers First Congress 1944, MNH, (0839) |
| THIRD REICH,MOUNTED POSTILION,1942,POSTAL CONGRESS,MNH! |
| Egypt Sc 270 1948 International Cotton Congress MNH |
| EGYPT 1964 1st AFRO ASIAN MEDUCAL CONGRESS MNH |
| LEBANON 1938 MEDICAL CONGRESS Sc C75-C78 MNH |
| Lebanon 28th UPU Congress Sc# C794-C796 Set of 3 MNH |
| SHARJAH. 1966 AIJP Congress. 20 Sets MNH. CV$79 |
| Japan 11th Intnl Congress of Electron MNH Sheet of 20 |
| Japan 1982 XVI Congress of Dermatology MNH Sheet of 20 |
| RUSSIA 1966 COMMUNIST PARTY CONGRESS LENIN SHEET MNH |
| Russia,1981,Sc4902,Full Sheet,PARTY CONGRESS,MNH |
| RUSSIA/USSR 1984 Philatelic Congress. Overprinted, MNH |
| RUSSIA/USSR 1971 Party Congress Sheet, MNH |
| RUSSIA ANTI DRUG CONGRESS 2003 MNH |
| USSR CPSU 27th Party Congress 1986 SS MNH |
| RUSSIA/USSR 1978 Trade Union Congress. Block of 4v, MNH |
| RUSSIA 1936 FIRST CONGRESS OF SOVIET ARCHITECTS MNH VF |
| USSR CPSU 25th Party Congress 1977 SS MNH |
| USSR CPSU 26th Party Congress 1981 SS MNH |
| RUSSIA/USSR 1989 Philatelic Congress. MINI-SHEET, MNH |
| Russia,1979,Sc4742,Full Sheet,VETERINARIAN CONGRESS,MNH |
| CUBA 2003 SC SC 4304 SEXOLOGY CONGRESS MNH |
| CUBA 1963 SC 806-13 ARCHITECT UNION CONGRESS SET MNH |
| CUBA 1985 SC 2772 UPAE CONGRESS MNH |
| CUBA 1975 SC 2024-26 COMMUNIST PARTY CONGRESS SET MNH |
| CUBA 1982 SC 2477 TRADE UNION CONGRESS MNH |
| CUBA 1991 SC 3351-52 COMMUNIST CONGRESS SET MNH |
| 1991 9th WORLD CONGRESS OF ROSES STAMPS MNH Cat £4.50 |
| GREAT BRITAIN 1929 ½p-2½p Postal Union Congress, MNH |
| CUBA 1974 SC 1892 SPORTS CONGRESS MNH |
| 1976 Philadelphia Congress Stamps from Vatican -MNH |
| ANGOLA Child Care & MPLA Congress MNH |
| Hungary 1952 Congress of Peace, in blocks of 6, MNH VF |
| RUSSIA/USSR 1986 Party Congress 20k. Block of 4v, MNH |
| GREECE 1966 TOBACCO CONGRESS BLOCK 4 SET MNH |
| GREECE 1968 GREEK ORTHODOX CONGRESS BLOCK 4 SET MNH |
| GREECE 1968 CARDIOLOGY CONGRESS BLOCK 4 SET MNH |
| GREECE 1965 A.H.E.P.A. CONGRESS BLOCK 4 SET MNH |
| Poland 1927 congress of medicine and pharmacy set mnh |
| POLAND 1954 PHIL.CONGRESS SC.#C34 MI.#849 MNH SUPERB |
| ROMANIA 1945 PARIS UNION CONGRESS EARTH PEACE MNH |
| CUBA 1982 SC 2558 CUBA PHILA. CONGRESS S/S MNH |
| Korea - 1993 21st UPU Congress Souvenir Sheet MNH |
| PRC 1954 C29 Sc#237-238 ELECTION CONGRESS MNH |
| [041] CONGRESS, FLAG stamp MNH PHILIPPINES |
| Mongolia 18 komunist congress set MNH |
| MOROCCO : SC.#614 MILITARY MEDICAL CONGRESS, MNH |