Productivity Discussion 20 c — Singapore, 1991
Productivity Discussion (Singapore, 1991), face value 20 c, “10 Years of Productivity” series. Photo, catalogue value, details and photo identification.
- Series
- 10 Years of Productivity
- Issue date
- 1991
- Face value
- 20 c
- Colors
- Multicolor
- Yvert
- SG 623
- Michel
- SG 640
- Stanley Gibbons
- SG 667
- Scott
- SG 609