60 Ducats — most ducats (gold coins first issued in 1284 by the Doge in Venice and later minted in equivalents of Hungarian, Dutch, Imperial, Swedish or Russian ducats) were coined with a weight of 3.42 to 3.5 g. Both weight and fine gold content varied according to national regulations. A standard existed none the less as these coins faced a competition when looking for customers on the European market. The English guinea had, by comparison, a weight of 8.3500 g and a fine gold content of 7.6542 g. 60 ducats would (on the basis of the Dutch ducat of of 3.4900 g with a fine gold content of 3.4411 g) make 206.47 g fine gold that is almost eactly 27 guineas or £29, 7s in 1719. See special page on Robinson Crusoe and Money.