The 20th International Engineering Fair, Brno 1978
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1978
The 20th International Engineering Fair, Brno
13. September Wz: Keine Design: F. Hudeček Gravieren: L. Jirka Zähnung: 11½ x 11¼
![[The 20th International Engineering Fair, Brno, Typ BUN]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-stamps/BUN-s.jpg)
