1982-01-01 Sig 17 Prefix F/1 - F/10 20 rupees
Details
Obverse: English, Sinhala, and Tamil text; Moonstone (sandakada pahana) steps from Polonnaruwa Vatadage in Anuradhapura
Reverse: Back (vertical): English, Sinhala, and Tamil text; Thuparama Dagoba (temple) in Anuradhapura; orchids