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  2. Two-up - Wikipedia

    en.wikipedia.org/wiki/Two-up

    Outside view of the two-up shed in Kalgoorlie, Western Australia. Two original 1915 Australian pennies in a kip from which they are tossed. 1915 is significant as the year of the Gallipoli campaign which is remembered annually on Anzac Day Australian soldiers playing two-up during World War I at the front near Ypres, 23 December 1917 Painting of two-up game.

  3. Coin flipping - Wikipedia

    en.wikipedia.org/wiki/Coin_flipping

    To choose two out of three, three coins are flipped, and if two coins come up the same and one different, the different one loses (is out), leaving two players. To choose one out of three, the previous is either reversed (the odd coin out is the winner) or a regular two-way coin flip between the two remaining players can decide. The three-way ...

  4. Australian two-dollar coin - Wikipedia

    en.wikipedia.org/wiki/Australian_two-dollar_coin

    The Australian two-dollar coin is the highest-denomination circulating coin of the Australian dollar. It was first issued on 20 June 1988, having been in planning since the mid-1970s. It replaced the Australian two-dollar note due to having a longer circulatory life. [2] The only "mint set only" year was 1991.

  5. Commemorative coins of Australia - Wikipedia

    en.wikipedia.org/wiki/Commemorative_coins_of...

    A–Z (alphabet) coins issued featuring 'Iconic Australia'. A total of 26 coins issued. 456,000 (each coin type) Great Coin Hunt – two A letter 'G' coin of the great coin hunt was released with a coloured reverse. 22,500 Donation Dollar A dollar designed to be donated 5,000,000 2023 Great Coin Hunt – three A–Z (alphabet) coins issued ...

  6. Coins of the Australian dollar - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_Australian_dollar

    The one-dollar coin was introduced in 1984, to replace the banknote of the same value. The two-dollar coin, also replacing a banknote, was introduced in 1988. They have content of 2% nickel, 6% aluminium and 92% copper. The two-dollar coin is smaller in diameter than the one-dollar coin, but the two-dollar is slightly thicker.

  7. Glossary of numismatics - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_numismatics

    A coin with one type of metal in the center with an outer ring of a different metal. Examples are the 1 and 2 Euro coins and the Canadian "toonie" two-dollar coin. blank. Also called a planchet or flan. 1. A prepared disk of metal on which the design for a coin will be stamped. [1] 2. The un-struck or flat side of a uniface coin or medal. brass

  8. St. Petersburg paradox - Wikipedia

    en.wikipedia.org/wiki/St._Petersburg_paradox

    The St. Petersburg paradox or St. Petersburg lottery [1] is a paradox involving the game of flipping a coin where the expected payoff of the lottery game is infinite but nevertheless seems to be worth only a very small amount to the participants. The St. Petersburg paradox is a situation where a naïve decision criterion that takes only the ...

  9. Coins of Australia - Wikipedia

    en.wikipedia.org/wiki/Coins_of_Australia

    At this time, 1, 2, 5, 10, 20, and 50 cent coins were issued. [6] $1 coins were first issued in 1984, [7] and $2 coins soon followed in 1988. The one- and two-cent coins were discontinued in 1990 and withdrawn from circulation in February 1992. [8]