25th Anniversary Indian Standards Institution 20 P — India, 1972
25th Anniversary Indian Standards Institution (India, 1972), face value 20 P. Photo, catalogue value, details and photo identification.
- Issue date
- 1972
- Face value
- 20 P
- Colors
- Black | Turquoise grey
- Yvert
- IN 338
- Michel
- IN 536
- Stanley Gibbons
- IN 656
- Scott
- IN 552