Friedrich d'or

The Friedrich d'or was a Prussian gold coin (pistole) nominally worth 5 silver Prussian thalers. It was subsequently copied by other North German states under their own rulers' names (August-, Friedrich-August-, Christian d'or) and valued at 4.8-5 silver North German thalers.

It was used from 1741 to 1855 as a regularly-issued gold trade coin at this time, and was traded at a small premium or discount to its face value of five thalers in silver standard currency (silberkurantgeld) used in the stock exchanges and elsewhere. Around 1780, for example, the Saxon August d'or was quoted at 116 to 120 groschen sächsischen silberkurantgeldes (4.83 to 5 thalers, Saxon silver currency), with a maximum discount of 4 groschen (0.17 thaler). In the 19th century it usually had a low premium.

Prussian purchase contracts or bonds payable in 5-thaler gold pistoles (rather than silver currency) were noted as payable in "XX thalers, preußisch Courant" or "Friedrich d'or".