Science and technology 

• 1950 
• 30 
• Hungary 
• Moderne techniek 

LastDodo number

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Title

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Day

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Item subject

Michel number

Yvert number

Scott number

Stanley Gibbons number

Philatelia Hungarica Catalog number

Designer/Engraver

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Printing technique

Paper

Gum

Print run

Dimensions / diameter

Details