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DDR #Mi1468 MNH 1969 Erythrite Cobalt Bloom Schneeberg Erzgebirg [1105 YT1164]
Buy: $3.13 CAD
DDR #Mi801 MNH 1960 Chemical Worker [526]
Buy: $3.13 CAD
Vatican City #Mi844-Mi845 MNH 1984 Abbot Mendel Genetics Pea [729-730]
Buy: $3.13 CAD
DDR #Mi626 MNH 1958 Quantum Theory Equation [383]
Buy: $3.13 CAD
Ukraine 1998 #213-217 VF MNH Kyiv Polytechnic Institute, Academics
Buy: $5.36 CAD
Algeria #YT297 MNH 1952 Nautilus Fossil Shell Berbericeras sekikensis [247]
Buy: $6.39 CAD
DDR #Mi3230-Mi3234 MNH 1989 Personalities Scientists [2729-2733]
Buy: $3.91 CAD
DDR #Mi1468-Mi1473 MNH 1969 Freiberg Mining Academy Minerals [1105-1110]
Buy: $4.21 CAD
Russia, Scott# 1469 - 1471, Michel# 1470 - 1472, MHOG
Buy: $23.10 CAD
DDR #Mi479-Mi480 MNH 1955 Leipzig Fair Optics Ceramics [253-254]
Buy: $3.13 CAD
DDR #Mi2557-Mi2560 MNH 1980 Geophysics Gravimeter Borehole Seismology [2146a]
Buy: $5.30 CAD
Togo #YTPA8 MNH 1942 Colonial Education Fund Quinzaine Imperiale [CB3]
Buy: $3.13 CAD
French India #YTPA9 MNH 1942 Colonial Fund Quinzaine Imperiale [CB3]
Buy: $4.21 CAD
Algeria #YT313 MNH 1954 Darguinah Hydroelectric Works Dam [255]
Buy: $3.13 CAD
DDR #Mi800 MNH 1960 Chemical Worker Scientists [525]
Buy: $3.13 CAD
DDR #Mi3232 MNH 1989 Personalities Scientists Adam Scharrer [2731]
Buy: $3.13 CAD
Switzerland 2005 Albert Einstein FDC
Buy: $6.11 CAD
DDR #Mi2006-Mi2011 MNH 1974 Freiburg Topaz Quartz Agate Amethyst [1604-1609]
Buy: $4.21 CAD
Monaco #YT861 MNH 1971 Hydrographic Map Compass Astrolabe [804 Mi1010 SG1010]
Buy: $3.13 CAD
D86829 200th Anniv. Belgian Academy of Science FDC Silk Cachet Belgium Ledeberg
Buy: $3.40 CAD
DDR #Mi3203-Mi3207 MNH 1988 Bridges Lifts [2707-2711]
Buy: $4.21 CAD
Sweden Scott #1661-1665 MNH STRIP Nobel Prize Winners in Physics CV$5+ 417412
Buy: $5.10 CAD
Russia #Mi4828 MNH 1979 Einstein Physics E=mc2 [4741]
Buy: $5.27 CAD
Monaco #YT913 MNH 1972 Louis Pasteur Scientist [854]
Buy: $3.13 CAD
Russia, Two stamps of Scott# 2083, Michel# 2101, MNHOG
Buy: $13.59 CAD
Upper Senegal & Niger #YT20 MH 1914 Targui Nomad Camel Rider [20]
Buy: $3.13 CAD
DDR #Mi2797 MNH 1983 Pulpit Hourglass [2344]
Buy: $5.30 CAD
Monaco #YT732 MNH 1967 Marie Sklodowska Curie Radium Polonium Nobel Prize [673]
Buy: $4.21 CAD
DDR #Mi3207 MNH 1988 Bascule Bridge Rugendamm [2711]
Buy: $3.13 CAD
Monaco #YT962 MNH 1974 Inventors Scientists Fernand Forest [909]
Buy: $3.13 CAD
DDR #Mi574 MNH Natural Science Math Astronomy Physics Jungius [352]
Buy: $3.13 CAD
Monaco #YT960 MNH 1974 Inventors Scientists Guglielmo Marconi [907]
Buy: $3.13 CAD
Finland #Mi1098-Mi1099 MNH Booklet 1990 Hologram Map Lake Globe [810-811]
Buy: $6.39 CAD
DDR #Mi800-Mi803 MNH 1960 Chemical Worker Trabant Corn Dress [525-528]
Buy: $4.21 CAD
French Morocco #YT329 Mint 1953 Bine el Ouidane Dam [295]
Buy: $3.13 CAD
Ukraine 1998 #213-217 Sc314-318 FDC 100yrs Kyiv Polytechnical Institute Unposted
Buy: $13.09 CAD
Inini #YTPA3 MNH 1942 Colonial Education Fund Quinzaine Imperiale [CB3]
Buy: $4.21 CAD
BRD FRG #Mi204 MH 1955 Carl F Gauss Mathematician Astronomer [725 YT80 SG1130]
Buy: $4.21 CAD
DDR #Mi576 MNH Natural Science Math Astronomy Physics Hertz [354]
Buy: $3.13 CAD
DDR #Mi575 MNH Natural Science Math Astronomy Physics Euler [353]
Buy: $3.13 CAD
Somali Coast #YTPA10 MNH 1942 Colonial Fund Quinzaine Imperiale [CB3]
Buy: $4.21 CAD
Monaco #2093 MNH
Buy: $4.21 CAD
Monaco #YT1704 MNH 1989 MAP Charity Dove Continents [1701]
Buy: $4.21 CAD
Great Britain 1991. Science. Used.
Buy: $3.55 CAD
BRD FRG #Mi204 MNH 1955 Carl F Gauss Mathematician Astronomer [725 YT80 SG1130]
Buy: $6.39 CAD
Greece #Mi1848A-Mi1849A MNH 1994 Europa CEPT Thales Militos [1785a]
Buy: $7.47 CAD
DDR #Mi802 MNH 1960 Chemical Worker [527]
Buy: $3.13 CAD
Denmark #Mi408x-Mi408y MNH 1962 Cliffs Moen Island [405]
Buy: $3.13 CAD
DDR #Mi803 MNH 1960 Chemical Worker Laboratory [528]
Buy: $3.13 CAD
French Andorra #YT197 MNH 1969 Water Protection Agreement Diamond [191]
Buy: $4.21 CAD
DDR #Mi497 1955 Used Georgios Agricola Mining [271]
Buy: $3.13 CAD
DDR #Mi3234 MNH 1989 Personalities Scientists Johann Beckmann [2733]
Buy: $4.21 CAD
DDR #Mi2848 MNH 1984 Pyrex Schott [2389]
Buy: $3.13 CAD
Russia, Scott# 945- 946, Michel# 928- 929, MNHOG.
Buy: $7.47 CAD
DDR #Mi627 MNH 1958 Max Planck [384]
Buy: $3.13 CAD
French Sudan #YTPA9 MNH 1942 Colonial Quinzaine Imperiale [CB4]
Buy: $4.21 CAD
Denmark #Mi404x-Mi404y MNH 1962 Mill [402]
Buy: $3.13 CAD
Austria #Mi2289 MNH M/S 1999 Optical Instruments Explosion Letters [1791]
Buy: $11.82 CAD
DDR #Mi497 MNH 1955 Georgios Agricola Mining [271]
Buy: $3.13 CAD
D117511 Greece VFU, Very fine used Early issue, 1927 Academy of Sciences
Buy: $3.79 CAD
Mauritania #YTPA9 Mint 1942 Colonial Education Quinzaine Imperiale [CB4]
Buy: $3.13 CAD
DDR #Mi3090 MNH 1987 LPG Agriculture Combine Tractor Horse [2602 YT2710]
Buy: $3.13 CAD
DDR #Mi626-Mi627 MNH 1958 Max Planck Quantum Theory Equation [383-384]
Buy: $4.21 CAD
TURKISH CYPRUS 1992 ANNIV. AVIATION, METEOROLOGY, MAPPING - FIRST DAY COVER FDC
Buy: $8.83 CAD
Greece #Mi1848A MNH 1994 Europa CEPT Thales Militos [1784]
Buy: $4.21 CAD
DDR #Mi3233 MNH 1989 Personalities Scientists Rudolf Mauersberger [2732]
Buy: $3.13 CAD
BRD FRG #Mi1184 MNH 1983 Otto Warburg Physiologist Chemist [1400 YT1016 SG2033]
Buy: $3.13 CAD
DDR #Mi3230 MNH 1989 Personalities Scientists Ludwig Renn [2729]
Buy: $3.13 CAD
Monaco #YT394 MNH 1953 Hirondelle Richet Anaphylaxis Portier [303 Mi470]
Buy: $4.21 CAD
Monaco #YT1608 MNH 1987 Samuel Morse Telegraph [1602]
Buy: $4.21 CAD
Liechtenstein #Mi414II MNH 1961 Europa CEPT Cogwheels [368]
Buy: $3.13 CAD
DDR #Mi1471 MNH 1969 Smoky Quartz Lichtenberg Thuringia [1108 YT1167]
Buy: $3.13 CAD
Monaco #1757 MNH
Buy: $3.13 CAD
DDR #Mi620-Mi621 MNH 1958 Post Horn Radio Tower Waves Morse Code [379-380]
Buy: $4.21 CAD
Austria #Mi2289 MNH 1999 Optical Instruments Explosion Letters Stamp Day [1791]
Buy: $3.13 CAD
Afars & Issas #YTPA111 MNH 1977 Volta Train Lightbulb Inventor [C105]
Buy: $8.56 CAD
French India #YTPA9 MH 1942 Colonial Fund Quinzaine Imperiale [CB3]
Buy: $3.13 CAD
Greece #Mi1849A MNH 1994 Europa CEPT Karatheodoris [1785]
Buy: $6.39 CAD
Monaco #2241 MNH
Buy: $3.13 CAD
DDR #Mi2799 MNH 1983 Table Sundial [2346]
Buy: $3.13 CAD
Vatican City #Mi747 MNH 1979 Angelo Secchi Optical Instruments [656]
Buy: $3.13 CAD
Monaco #YT959 MNH 1974 Inventors Scientists Henri Farman [906]
Buy: $3.13 CAD
DDR #Mi1470 MNH 1969 Galena Neudorf Harz Mountains [1107 YT1166]
Buy: $3.13 CAD
DDR #Mi2796-Mi2801 MNH 1983 Sand Sun Clock Dial [2343-2348]
Buy: $4.21 CAD
DDR #Mi2800 MNH 1983 Table Sundial [2347]
Buy: $3.13 CAD
Turkey Republic 1984-1985 4 FDC COVERS    F VF
Buy: $33.97 CAD
France #YT1148 MNH 1958 Foucault Leon 1819-1868 [871 Mi1184]
Buy: $4.21 CAD
Monaco #YT961 MNH 1974 Inventors Scientists Ernest Duchesne [908]
Buy: $3.13 CAD
Monaco #YT959-YT962 MNH 1974 Inventors Scientists [906-909]
Buy: $4.21 CAD
DDR #Mi1473 MNH 1969 Silver Fire Freiberg Himmelsfürst Mine [1110 YT1169]
Buy: $3.13 CAD
Vatican City #717a MNH S/S 1982 Gregorian Calendar
Buy: $5.30 CAD
Greenland #107 MNH
Buy: $3.13 CAD
French Andorra #YT643 MNH 2007 Pinette Steam Engine Automobile [627]
Buy: $3.13 CAD
DDR #Mi2801 MNH 1983 Table Sundial [2348]
Buy: $3.13 CAD
DDR #Mi3203 MNH 1988 Lift Bridge Stromelbe Magdeburg [2707]
Buy: $3.13 CAD
DDR #Mi3205 MNH 1988 Boat Lift Niederfinow [2709]
Buy: $3.13 CAD
Reunion #YTPA9 Mint 1942 Colonial Education Quinzaine Imperiale [CB4]
Buy: $3.13 CAD
DDR #Mi2796 MNH 1983 Kanzelsanduhr [2343]
Buy: $3.13 CAD
Monaco #YT394 Mint 1953 Hirondelle Richet Anaphylaxis Portier [303 Mi470]
Buy: $3.13 CAD
DDR #Mi1469 MNH 1969 Fluorite Fluorspar Halsbrücke Erzgebirge [1106 YT1165]
Buy: $3.13 CAD