Stannary

A stannary was an administrative division established under stannary law in the English counties of Cornwall and Devon to manage the collection of tin coinage, which was the duty payable on the metal tin smelted from the ore cassiterite mined in the region. In Cornwall, the duty was passed to the Duchy of Cornwall; in Devon to the Crown.

With the abolition of tin coinage in 1838 (following extensive petitioning by the Cornish tin industry for simplification of the taxation rules), the principal purpose of the stannaries ceased. In Cornwall, however, they retained certain historic rights to appoint stannators to the Cornish Stannary Parliament.[citation needed]