H. C. Urey, Discoverer of Heavy Water 7,300 L — Romania, 1999
H. C. Urey, Discoverer of Heavy Water (Romania, 1999), face value 7,300 L, “20th Century” series. Photo, catalogue value, details and photo identification.
- Series
- 20th Century
- Issue date
- 1999
- Face value
- 7,300 L
- Colors
- Multicolor
- Print run
- 1,070,000
- Yvert
- RO 4555
- Michel
- RO 5428
- Stanley Gibbons
- RO 6058
- Scott
- RO 4314