1979-03-26 Sig 17 Prefix H/1 - H/30 10 rupees
Details
Obverse: English, Sinhala, and Tamil text; Tockus griseus gingalensis (calao hornbill) bird perched on Dialium ovoideum (velvet tamarind) tree branch
Reverse: Back (vertical): English, Sinhala, and Tamil text; Pycnonotus penicillatus (yellow-eared bulbul) bird, Rhododendron arboreum tree; Rhacophorus cruciger eques (spurred tree frog) amphibian, Ipsea speciosa (daffodil orchid) flower