Diagonal red SPECIMEN ovpt front/back; all-zero s/n 10 rupees
Details
Obverse: English, Sinhala, and Tamil text; octagon building (paththirippuwa) at Temple of the Sacred Tooth Relic in Kandy
Reverse: Back (vertical): English, Sinhala, and Tamil text; Dagoba Raja Maha Vihare (Buddhist temple) in Kelaniya