History of Composition
| Years | Weight | Diameter | Thickness | Composition |
|---|---|---|---|---|
| 2000–present | 6.9 g | 27.13 mm | 1.95 mm | 93.15% steel, 4.75% copper, 2.1% nickel plating |
| 1980–1999 | 8.10 g | 27.13 mm | 1.9 mm | 99.9% nickel |
| 1968–1979 | 8.10 g | 27.13 mm | 1.93 mm | 99.9% nickel |
| 1920–1967 | 11.66 g | 29.72 mm | n/a | 80% silver, 20% copper |
| 1908–1919 | 11.62 g | 29.72 mm | n/a | 92.5% silver, 7.5% copper |
Read more about this topic: 50-cent Piece (Canadian Coin)
Famous quotes containing the words history of, history and/or composition:
“I am not a literary man.... I am a man of science, and I am interested in that branch of Anthropology which deals with the history of human speech.”
—J.A.H. (James Augustus Henry)
“The view of Jerusalem is the history of the world; it is more, it is the history of earth and of heaven.”
—Benjamin Disraeli (1804–1881)
“The naive notion that a mother naturally acquires the complex skills of childrearing simply because she has given birth now seems as absurd to me as enrolling in a nine-month class in composition and imagining that at the end of the course you are now prepared to begin writing War and Peace.”
—Mary Kay Blakely (20th century)