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The famous "Pine Tree" coins of Colonial days were products of the mint established in Boston, Massachusetts, in 1652. Despite England's prohibition of coinage in the colonies, the mint operated until the mid-1680s, when it was closed by order of Parliament.
http://www.richmondfed.org/about_us/our_tours/money_museum/virtual_tour/colonial_coin_and_currency/index.cfm
http://www.coins.nd.edu/ColCurrency/