Genus species: Pleurotus ostreatus

Series: Mushrooms (North Korea 1985)
Catalog codes:
- Michel: KP 2641
- Stamp Number: KP 2470
- Yvert et Tellier: KP 1794-B
- Stanley Gibbons: KP 2491
Emission: Commemorative
Perforation: comb 11½
Printing: Offset lithography
Colors: Multicolor
Face value: 20 North Korean chon

Reference: colnect.com
Shop now link: ebay.com (note: market availability)