1980, (First day: 12. July 1980) imperforate, 28. International Congress of Physiological Sciences in Budapest (motive: physician Endre Hőgyes) FDC (first day cover), cleanly canceled with special cancellation, sent to Germany, very good collectible condition (see item photos for details), see SCAN
1980, (First day: 12. July 1980) imperforate, 28. International Congress of Physiological Sciences in Budapest (motive: physician Endre Hőgyes) FDC (first day cover), cleanly canceled with special cancellation, sent to Germany, very good collectible condition (see item photos for details), see SCAN