Formulae & Figures

Argentina

2005.    International Physics Year

 

 

Belgium

1969.    25th Anniversary of BENELUX customs Union (Mobius' strip)

 

SG2120 3f National colours

                                      

 

 

 

 

 

First day covers

Cuba

  

1968.    Cultural congress, Havana

 

SG1567 30c "Scientific & technical work" (Mobius strip)

 

Czechoslovakia

                 

                                     

1987.    125th Anniversary of Union of Czech Mathematicians and Physicists

 

SG2887 50h Theory of functions diagram
SG2889 50h Brownian motion and earth fold diagram

First day cover

India

1975.    World Hindu convention

 

Sc648 25p Goddess of language & learning

 

Israel

1973.    50th anniversary of "Technion" Israel Institute of Technology

 

SG568 1.25l (Impossible figure)

First day cover

 

1977.    Zionist organization of America convention

 

SG671 4l (Mobius strip)

First day cover

 

1990.    Celebrities

 

SG1211 80 agorot G Racah

                                      

Luxembourg

1969.    25th Anniversary of "Benelux" customs union

 

SG841 3 franc  National colours

           

 

 

 

 

First day covers

Netherlands

1969.    25th Anniversary of "Benelux" customs union

 

SG1095 25c National colours

First day cover

 

Poland

                                               

  

1963.    "The conquest of space"

 

SG1423 30 groszy Rocket and formula

          

                                                                

  

1977.    7th Polish congress of technology

 

SG2483 1 zloty 50 Pendulum traces & enblem

 

 

 

First day cover

  

1995.    11th Death anniversary of Groszkowski

 

SG3591 45g Groszkowski and formula

First day cover

 

Romania

  

1966.    Centenary of Romanian Academy

 

SG3409 55b Science

 

                                      

1989.    Air. Space pioneers

 

SG5260 1l.50 Tsiolkovski and diagram
SG5261 2l Oberth and equation

 

Russia

                                         

1971.    Birth centenary of Rutherford

 

SG3973 6k Rutherford and atomic formula

                                      

1976.

 

SG4544 1r Satellites orbiting globe

                                      

First day cover

Sweden

                                                       

1982.    Postage

 

SG1105 25 ore Impossible figure
SG1106 50 ore   Impossible figure
SG1107 75 ore Impossible figure

 

 

 

First day cover

1984.    Nobel prize winners for Medicine

 

SG1221 2k.70 Functions of the brain

First day cover

 

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