Russia 2000 Russian XX century Technology and transport set of 12 stamps in sheetlet / block MNH

1.50 (R).  Medicine
1.50 (R).  Construction
1.50 (R).  Motor transport
2.00 (R).  Power engineering
2.00 (R).  Communication
2.00 (R).  Space technology
3.00 (R).  Aviation
3.00 (R).  Rail transport
3.00 (R).  Sea transport
4.00 (R).  Metallurgy
4.00 (R).  Oil-refining industry
4.00 (R).  Extraction of minerals technology