Fifty Dollars Silver 1991 Dolphin, Coin from Cook Islands - detailed information

Fifty Dollars Silver 1991 Dolphin, Coin from Cook Islands
CoinFifty Dollars Silver 1991 Dolphin

The Cook Islands, a sovereign state in free association with New Zealand, uses two official legal tender currencies. The New Zealand Dollar circulates in parallel with the local Cook Islands Dollar; at the same time, the government also authorises many legal tender coins in the Cook Islands Dollar currency for collector's purposes.

Collector coins are dedicated to historical or general popular culture themes not related to the country itself. Many of them are in standard bullion sizes, but the silver Fifty Dollars listed below are not; their weight is more than a half ounce but less than one ounce, and also less than that of a British Crown, even though the diameter is the same as the latter (hence, the coins are thinner).

This coin was issued as part of a Royal Mint twelve-coin set featuring Endangered Wildlife, and is dedicated to the Dolphin.

Dolphin is the common name of aquatic mammals within the infraorder Cetacea. The term dolphin usually refers to the extant families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), named Iniidae (the New World river dolphins), and Pontoporiidae (the brackish dolphins), and the extinct Lipotidae (baiji or Chinese river dolphin). There are 40 extant species named as dolphins.

Dolphins range in size from the relatively small 1.7-metre-long long and 50-kilogram bodied Maui's dolphin to the 9.5 m and 10-tonne killer whale. Dolphins can sometimes leap about 9 metres. Several species of dolphins exhibit sexual dimorphism, in that the males are larger than females. They have streamlined bodies and two limbs that are modified into flippers. Though not quite as flexible as seals, some dolphins can travel at speeds 29 kilometres per hour for short distances. Dolphins use their conical shaped teeth to capture fast-moving prey. They have well-developed hearing which is adapted for both air and water and is so well developed that some can survive even if they are blind. Some species are well adapted for diving to great depths. They have a layer of fat, or blubber, under the skin to keep warm in the cold water.

Although dolphins are widespread, most species of them prefer the warmer waters of the tropic zones, but some, like the right whale dolphin, prefer colder climates. Dolphins feed largely on fish and squid, but a few, like the killer whale, feed on large mammals, like seals. Male dolphins typically mate with multiple females every year, but females only mate every two to three years. Calves are typically born in the spring and summer months and females bear all the responsibility for raising them. Mothers of some species fast and nurse their young for a relatively long period of time. Dolphins produce a variety of vocalisations, usually in the form of clicks and whistles.

MintRoyal Mint Mint MarkNo mint mark Total Mintage25,000
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Obverse
Cook Islands / Fifty Dollars Silver 1991 Dolphin - obverse photo

The obverse of the coin shows the crowned bust of Queen Elizabeth II, facing right (her effigy known as the "Third Portrait"). The Queen is wearing the royal diadem which she wears on her way to and from the State Opening of Parliament, a pearl necklace and earrings.

Incuse in tiny letters on the neck truncation, the designer's initials RDM (for Raphael David Maklouf).

Around, the monarch's legend and the date: ELIZABETH II COOK ISLANDS 1991.

Obverse Inscription ELIZABETH II COOK ISLANDS 1991
Reverse
Cook Islands / Fifty Dollars Silver 1991 Dolphin - reverse photo

The reverse of the coin shows two dolphins in their natural habitat.

Around above left and right, the name of the series: ENDANGERED WILDLIFE.

Around below, the face value and denomination 50 DOLLARS.

Reverse Inscription ENDANGERED WILDLIFE 50 DOLLARS
EdgeMilledEdge InscriptionNone
Notes

Finish: proof.

Note that the Royal Mint announced mintage of 25,000 for each coin in the set but only 1,000 sets. At the same time, it does not appear that the coins were issued separately. It is probable that the 1,000 number applies only to sets that contain a Certificate of Authenticity.

Issued in Set
Endangered Wildlife Silver Proof Coin Collection 1991, mintage 1,000
12 coins: Alpine Ibex, Deer, Eagle Owl, Eastern Cougar, European Otter, Hummingbird, Jackass Penguin, Kangaroo, Lion, Peregrine Falcon, Dolphin, Persian Fallow Deer
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Fifty Dollars Silver 1991 Dolphin: Details
CountryCook Islands
CurrencyCook Islands Dollar
Coin TypeFifty Dollars, Silver
Issued1991
MonarchQueen Elizabeth II
EffigyQueen Elizabeth II - Third Portrait, by Raphael Maklouf
Face Value50 (x Dollar)
Total Mintage25,000
CurrentYes
Material0.925 Silver
TechnologyMilled (machine-made)
ShapeRound
OrientationMedal Alignment (Axis 0)
Size38.610 mm
Mass19.200 g
OCC IDANMQ-OPYC-PJVV-EJYG
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Fifty Dollars Silver 1991 Dolphin: Photos
ImageDetails
Dolphins on Reverse of 1991 Cook Islands Silver Proof 50 Dollars
Copyright: Chards
Source
Obverse of 1991 Cook Islands Silver Proof 50 Dollars
Copyright: Chards
Source
Fifty Dollars Silver 1991 Dolphin: Catalogue Reference IDs
SourceReference ID
Krause, Standard Catalog of World CoinsCook Islands KM# 95