Reverse In the central part, a radiated tortoise facing left. Below it, the inscription in Tongan '1 SENITI'. Along the rim, decorative elements in the form of dots.
Obverse In the center, the right-facing profile of the fourth King of the Kingdom of Tonga, Taufa'ahau Tupou IV. Around the rim are dots, along which inscriptions are placed: at the top in Tongan, the ruler's name 'TAUFA'AHAU TUPOU IV', at the bottom the year of minting '1968'.