British and Scottish Coins and Countermarked Tokens from the Collection of the late Arthur Chesser

England, WARWICKSHIRE, Birmingham, Donald & Co, a BOLIVIA, Charles IIII, 8 Réales, 1791pr, Potosí, obv. countermarked donald & co · birmingham ·, 26.72g/12h (Manville 100, this coin not listed; KM. C645). Coin fine, countermark better, of the highest rarity; perhaps only the fifth known specimen £3,000-4,000