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:
“Every library should try to be complete on something, if it were only the history of pinheads.”
—Oliver Wendell Holmes, Sr. (1809–1894)
“Psychology keeps trying to vindicate human nature. History keeps undermining the effort.”
—Mason Cooley (b. 1927)
“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)