Reverse In the upper part, along the edge of the coin, is the text for pa'anga in Tongan: "PA'ANGA". The central part features the coat of arms of Tonga. Below is the country name in Tongan: "TONGA". Decorative raised dots are placed along the rim.
Obverse The central part depicts the right-facing profile of King of Tonga Taufa'ahau Tupou IV. In the upper part, along the edge of the coin, is the text in Tongan: "TAUFA'AHAU TUPOU IV". On the left is an image of an oil derrick and the date: "1969". On the right, in English: "OIL SEARCH". Below: "1968" - the year of minting. Decorative raised denticles are placed along the rim.