a.

b.
  
   
 

40th Anniversary of the 6th Conference of the Russian Social Democrat Workers' Party in Prague
   

(Czechoslovakia   1952-01-30)
   
   

 
Item Catalog number Issue description Size Perf. Print run
Czechoslovakia Michel Scott

 
a. 629 703 497   1.50k, carmine 12.5 3,990,000
b. 630 704 498 5k, blue-grey 12.5    420,000
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