Genus species: Greville's bolete

Series: Mushrooms I (Bulgaria 1961)
Catalog codes:
- Michel: BG 1265
- Stamp Number: BG 1185
- Yvert et Tellier: BG 1101
- Stanley Gibbons: BG 1276
Emission: Commemorative
Perforation: comb comb 12¾ x 12½
Printing: Offset lithography
Colors: Multicolor
Print run: 1,500,000
Face value: 12 ст - Bulgarian stotinka

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