| SPECIFICATIONS | |
| Denomination | Rupees One |
| Alloy | Copper-Nickel |
| Diameter | 25.4 mm |
| Thickness | .0 mm |
| Weight | 7.13 gms |
| Shape | Round |
| Edge | Security edge |
| DieAxis | O° |
LANKA - One Rupee
A definitive decimal currency one Rupee copper-nickel coin. The last One Rupee currency note was issued on 1963 June 5th.
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| KM #133 | ||||||||||||||||||||
Obverse : The Armorial Ensign of Ceylon.
Reverse : The value ONE RUPEE in Sinhala, Tamil and English below and year of issue at the bottom within a circle of the traditional Sinhala Liyavela art with Lanka in Sinhala on top.
| Year | Alloy | Issue | Mint | Proof |
| 1963 | Cu-Nickel | 20,000,000 | ||
| 1965 | Cu-Nickel | 5,000,000 | ||
| 1969 | Cu-Nickel | 2,500,000 | ||
| 1971 | Cu-Nickel | 5,000,000 | Yes |
The Proof coin was scaned at 300dpi and the images are displayed at 250dpi.