gilder

kultaaja One who gilds; one whose occupation is to overlay with gold.
puhekieltä (alternative spelling of)
1743, A Description of Holland, page 103/H4:

... worth as much as a Dutch Gilder, or about 21 Pence English.

On both sides they will confuse you by explaining that the Dutch gilder is the currency they prefer.

... i.e. the 11 'legacy' currencies replaced by the euro on 1 January 1999 (Portuguese escudo, Belgian and Luxembourg franc, French franc, Dutch gilder, Italian lira, ...).