| SPECIFICATIONS | |
| Denomination | Rupees One |
| Alloy | cupro-nickel |
| Diameter | 25.4 mm |
| Weight | 7.13 gms |
| Thickness | 1.9 mm |
| Shape | Round |
| Edge | Security 1 |
| Die-Axis | 0° |
| Issue | 1,997,400 |
| Proof | 20,000 |
| Mint | Royal,Wales |
A commemorative one rupee cupro-nickel coin was issued by Central Bank of Ceylon in 1978 for circulation on the installation of J. R. Jayewardene as the First Executive President of the Democratic Socialist Republic of Sri Lanka.
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| KM# 144 | ||||||||||||||||||||||||||
obverse : The Armorial Ensign of Sri Lanka.
Reverse : An proile image of the President His
Excellency J. R. Jayewardene in the center. with the value ONE RUPEE
stated in in Sinhala appear at the apex of the coin and in Tamil and
English on ether side with the date 1978.02.04 and `Sri Lanka' in
Sinhala at the bottom below the date.
The coin first issued on 4th February 1978
was made from a special die these 2600 coins are slightly different from
those on the balance of the order put into circulation later in 2008
The most noticeable difference is that the President's right shoulder is straight
in the rare coin shown on right while
in the standard coin shown above it curves upwards.
The 20,000 Proof coins from the standard coin die were included in the set of eight 1978 Sri Lanka proof coins issued by the Royal Mint.
The coins were scanned at 300 dpi and the images are displayed at 250dpi. The uncirculated commemorative coin was obtained from the Central Bank of Ceylon.
