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Dictionary of Traded Goods and Commodities
… Zaffre - Zoobditty match Zaffre Also known as saffer and saffre, this processed BLUE mineral, that is roasted … COBALT ore, or impure cobalt arsenate. In the sixteenth and seventeenth centuries the centre of production in Europe … in demand that the Society for the Encouragement of Arts, Manufactures, and Commerce promised a premium in 1755 of £30, …