National Science & Technology Authority 40 s — Philippines, 1983
National Science & Technology Authority (Philippines, 1983), face value 40 s. Photo, catalogue value, details and photo identification.
- Series
- National Science & Technology Authority
- Issue date
- 1983
- Face value
- 40 s
- Colors
- Multicolor
- Yvert
- PH 1318
- Michel
- PH 1537
- Stanley Gibbons
- PH 1773
- Scott
- PH 1643