GURPS: Church and State Society and Status
Money
Money is rated throughout the Central Kingdoms as: Copper Farthing (1) Silver Penny (4) Gold Crown (200) Silver Pound (1000)
Imperial Lands use similar denominations, but different: Copper Penny (1) Silver Shilling (4) Gold Mark (150) Talent (1000)
Coins of the Canton of the Grey Watch are very pure, reliable, and often physically large. They include the small copper khenn ($1), the copper dann ($12), the silver ffo ($144), and the gold tohn ($5,184). However, Grey Watch coins are extremely rare outside of the Canton; a Cantonite who pays a non-Cantonite in danns, let alone ffo, is showing great respect.