Watch List notes:

IRELAND: James II, 1685-1691, AE halfcrown, 1690, KM-101, S-6580B, "gun money" issue, month of May, slight verdigris, but exceptional surfaces, AU Gun money was an issue of coins made by the forces of James II during the Williamite War in Ireland between 1689 and 1691. They were minted in base metal (copper, brass or pewter alloy), and were designed to be redeemed for silver coins following a victory by James II and consequently bore the date in months to allow a gradual replacement. As James lost the war, that replacement never took place, although the coins were allowed to circulate at much reduced values before the copper coinage was resumed.

Estimate: 120-160 USD