
The 1977 Singapore 20 cents coin is part of the first series of circulation coins issued by Singapore, which ran from 1967 to 1985. This particular coin is composed of a copper-nickel alloy, has a weight of 5.65 grams, and a diameter of 23.6 millimeters.
The design was created by Christopher Ironside. The obverse of the coin features the coat of arms of Singapore, surrounded by the country's name and the year of mintage, 1977. The reverse side prominently displays a Lionfish (Pterois) swimming to the left, with the denomination "20 CENTS" inscribed below.
For the year 1977, the mintage figure for this coin was 40,000,000, making it a common date in the series. Due to its high mintage and commonality, its value is largely dependent on its condition. In a typical circulated state, the coin holds very little numismatic value beyond its face value. However, uncirculated specimens in pristine, mint-state condition can command a modest premium from collectors. According to price guides, an uncirculated example might be valued from one to several dollars, with prices increasing significantly for coins in the highest certified grades.
It is also worth noting that this series of coins, including the 1977 20 cents piece, was demonetized on December 31, 2002, and is no longer tender in Singapore.


