BELGIUM (1928) Scientific research. Illustrated cancel on postcard: Souscrivez au Fonds Nationel de la Recherches Scientifique.
AVAILABLE AT $15
GERMANY (1966) Oscilloscope screen. Archive photo (See Note) of unaccepted design for 150th anniversary of birth of inventor and industrialist, founder of Siemens. Scott No 966, Yvert No 385.
AVAILABLE AT $60
GERMANY (1966) Werner Siemens. Archive photo (See Note) of unaccepted design for 150th anniversary of birth of inventor and industrialist, founder of Siemens. Scott No 968, Yvert No 385.
AVAILABLE AT $60
NEW ZEALAND (1967) Sir James Hector. Aurora australis. FDC with cachet. Scott Nos 406-7.
AVAILABLE AT $5
FRANCE (1987) Hand pouring liquid from test tube into flask. Illustrated cancel on envelope: "Palaiseau - 3è Festival du Film Scientfique."
AVAILABLE AT $15
GREAT BRITAIN (1987) Isaac Newton. Unaddressed FDC with cachet. Scott Nos 1172-5.
AVAILABLE AT $10
FRANCE (1990) Hand pouring liquid from test tube into flask. Red meter cancelation on envelope front, No. NM 1521: "Palaiseau - Son Festival International du Film Scientifique. Sa Fête du Livre."
AVAILABLE AT $15
F.S.A.T. (1992) Scientist shaking hands with penguin, giving flowers to polar bear. Full sheet of 5 imperforate pairs with gutter. Scott No C120a, Yvert No PA120a.
AVAILABLE AT $110
F.S.A.T. (1993) Animal biologists examining bird. Microscope. Full sheet of 25 imperforates. Scott No C125, Yvert No PA126.
AVAILABLE AT $250
CUBA (2019) Albert Einstein. Saturn. Imperforate block of 4.
CAMEROUN (1975) Franklin. Die proof in black signed by the engraver ANDREOTTO. Scott No C229, Yvert No PA244.
ST. THOMAS & PRINCE (2004) Concorde. Sailing ship. Train. Auto. Darwin. Set of 4 imperforates with decorative borders.
MALI (1975) Ampère. Die proof in black signed by the engraver COMBET. Scott No C258, Yvert No PA265. Rare!
MONACO (1969) Underwater scene. Die proof in black signed by the engraver PHEULPIN. Scientific Exploration of the Mediterranean. Scott No 751, Yvert No 805.
ETATS UNIS (1952) Bausch and Lomb. Empreinte rouge de machine à affranchir sur pli Commercial Controls Corporation No 9210: "A une plus grande vision par les sciences optiques."
ETATS UNIS (1972) Voilier. Empreinte rouge de machine à affranchir sur fragment Pitney Bowes No 341869: "L'institut océanographique 'Woods Hole'. 40 années de recherches sur l'océan."