6 Doubloons — from Spanish doblón. The term referred in DeFoe’s days to the two escudo gold coins issued from 1516 to 1772 with a weight of 6.4564 g, fineness of 0.9167 and a fine gold content of 5.9184 g. 6 Duobloons would hence contain 35.51 g fine gold, and have the value of 4.64 guineas or £4; 17s, 5d in 1719. See special page on Robinson Crusoe and Money.