A Silver Frosted Proof commemorative one rupee cupro-nickel coin was minted for the Central Bank of Sri Lanka as a POMS in 1992 January on the 3rd Anniversary of the induction of the Ranasinghe Premadasa as the second Executive President of the Democratic Socialist Republic of Sri Lanka.
Obverse : Effigy of the President
Ranansinghe Premadasa within a circle of beads. The year of issue
1992 appears at the bottom centre. A traditional Sinhala
design using swans along the periphery.
Reverse : SRI LANKA in Sinhala in the apex of the coin and in Tamil and English on either side. Two traditional Sinhala lions with swords face each other above His Excellency the President's flag depicted at the center. The value ONE RUPEE in Sinhala Tamil and English appear below.
In addition to 2,500 Cupro-Nickel frosted Proof coins, off-metal Proof strikes were minted in Silver(2,000) and in Sovereign Gold(100) with identical design. The Gold and Silver coins were POMS (Presentation Off-Metal Strike). These coins were not released to public. They were given as gifts by the President. Two each of the silver & gold coins are on display at the Currency Museum of the Central Bank of Sri Lanka. I got them finally listed in Krause in the 2002 edition.
This silver coins was finally released to the public almost 15 years after minting in 2006 October with an issue price of Rs 750/- (US$ 7.). The Silver Proof coin enclosed in a hard clear plastic circular coin capsule is embedded in black velvet inside a Green 7.5 cm square hinged presentation box which has the lion emblem of the Central Bank with a ring of swans like on obverse of coin printed in gold on top. White satin of the inside cover has the Sri Lanka Armorial ensign printed in black. The folded certificate of Authenticity in English, with no serial number, was printed by Central Bank Press, in Black and Silver on Green paper. For the Gold coin the certificate of Authenticity was similer, printed in Black and Gold on Green paper.
The Frosted surface of the effigy makes the Proof coin distinctly different from the circulation issue. The Silver Proof has the same weight is the same as standard issue and is therefore 10.5% or 0.18 mm thinner than the Cupro-Nickel coin. The Mirror finish of the silver frosted Proof is distinctly better than that of the Cupro-Nickel frosted Proof
Read my article, an edited version of which was published as Lanka's first silver rupee in the Sunday Times of 2006 October 15th.
The Silver frosted Proof coin was scanned at 600dpi and the images are displayed at 250dpi. The commemorative Proof coin were obtained from the Central Bank of Sri Lanka in 2006 October.