Slide rule, caliper, & atomic model 55 Romanian ban — Romania, 1957
Slide rule, caliper, & atomic model (Romania, 1957), face value 55 Romanian ban, “2nd Congress of Engineers and Technicians, Bucharest” series. Photo…
- Series
- 2nd Congress of Engineers and Technicians, Bucharest
- Issue date
- 1957
- Face value
- 55 Romanian ban
- Colors
- Orange brown
- Print run
- 2,000,000
- Yvert
- RO 1515
- Michel
- RO 1645
- Stanley Gibbons
- RO 2503
- Scott
- RO 1160