Gustav Robert Kirchhoff

West Berlin

                                             

1974.    150th Birth anniversary of Kirchhoff

 

SGB449 30 pfennig Kirchhoff

 

 

 

 

 

 

 

 

First day covers

 

Democratic Republic of Germany

1974.    Celebrities' birth anniversaries

 

SGE1658 5 pfennig Kirchhoff

 

 

 

 

 

Used cover

 

 

 

First day cover

 

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