Hong Kong fifty-cent coin
Encyclopedia
The fifty cent coin was first introduced as a 0.900% silver half dollar in 1866. These coins were 13.41 grammes, with a diameter of 32 mm, thickness of 2 mm and were reeded. The design was similar to the British Trade dollar
Trade dollar
-United States:The United States trade dollar is a silver dollar coin that was issued by the United States Mint and minted in Philadelphia, Pennsylvania, Carson City, and San Francisco from 1873 to 1885. Trade dollars intended for circulation were last produced in 1878 while proof coin production...

, except the image of Britannia
Britannia
Britannia is an ancient term for Great Britain, and also a female personification of the island. The name is Latin, and derives from the Greek form Prettanike or Brettaniai, which originally designated a collection of islands with individual names, including Albion or Great Britain. However, by the...

 was replaces with Queen Victoria. The dates of issue were 1866-67 with only 59,000 issued for both dates combined.

In 1890 a second issue of this coin was made, this time as a fifty cent piece. The mintage years was from 1890–94 and 1902, 1904-05. The coin was reeded by reduced in size to 30.5 mm in diameter, but with an increase in weight to 13.48 grammes, but the thickness stayed the same at 2 mm. Metal composition was 80% silver.

No more of this denomination was minted until 1951 when a copper-nickel coin was issued. It was 23.5 mm in diameter, weighed 5.81 gm and 2mm in thickness. Until 1971 the reeding was with a security edge and from then onwards was just reeded. In 1977 a Nickel-Brass coin was issued which reduced the size of the coin, in 1993 the Bauhinia series was issued. In 1997 a commemorative coin was issued for the hand over of Hong Kong to China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

. It featured an ox
Ox
An ox , also known as a bullock in Australia, New Zealand and India, is a bovine trained as a draft animal. Oxen are commonly castrated adult male cattle; castration makes the animals more tractable...

.
Mintage years are as followes: 1951, 1958, 1960–61, 1963–68, 1970–75, 1977–80, 1990, 1993–95 and 1997-98.
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