Slide rule, caliper, & atomic model 55 Romanian ban — Roumanie, 1957
Slide rule, caliper, & atomic model (Roumanie, 1957), valeur faciale 55 Romanian ban, série « 2nd Congress of Engineers and Technicians, Bucharest ». Photo…
- Série
- 2nd Congress of Engineers and Technicians, Bucharest
- Date d’émission
- 1957
- Valeur faciale
- 55 Romanian ban
- Couleurs
- Brun-orange
- Tirage
- 2,000,000
- Yvert
- RO 1515
- Michel
- RO 1645
- Stanley Gibbons
- RO 2503
- Scott
- RO 1160