| SPECIFICATIONS | |
| Denomination | Fifty cents |
| Alloy | Copper-Nickel |
| Diameter | 21.5 mm |
| Thickness | .0 mm |
| Weight | 5.51 gms |
| Shape | Round |
| Edge | Security edge |
| DieAxis | O° |
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| KM #132 | ||||||||||||||||||||
Obverse : The Armorial Ensign of Ceylon with
இலங்கை in Thamil on left,
ලංකා in Sinhala in middle,
and CEYLON on left in a scroll at its bottom. All within circle of dots along periphery with raised rim.
Reverse : The large numeral denomination 50 with big
සත පනහ in Sinhala,
and smaller
ஐம்பது சதம் in Thamil,
and FIFTY CENTS
below and year of issue at the bottom,
with traditional Sinhala Liyavela art on either side, and country name
ලංකා (Lanka)
in Sinhala centered on top. All within circle of dots along periphery with raised rim.
| Year | Alloy | Issue | Mint | Proof |
| 1963 | Cu-Nickel | 15,000,000 | ||
| 1965 | Cu-Nickel | 7,000,000 | ||
| 1971 | Cu-Nickel | 4,000,000 | Yes |
The Proof coin was scaned at 300dpi and the images are displayed at 250dpi.