Munguva yakareba, hurumende yeUnited States yakaratidza kukosha kwedhora reUS kuitira kuti imwe troy ounce yakaenzana ne $ 20.67 ($ 0.665 pa gramu), asi muna 1934 dhora rakaderedzwa kusvika pa $ 35.00 pa troy ounce ($ 0.889 / g). Pakazosvika 1961, zvaive zvava kunetsa kuchengetedza mutengo uyu, uye dziva remabhangi eUS neEuropean akabvuma kushandisa musika kudzivirira kuderedzwa kwakanyanya kwegoridhe. Musi waKurume 17, 1968, mamiriro ezvehupfumi akakonzera kudonha kwegoridhe, uye chirongwa chematanho maviri chakagadzwa umo imwe huremu yegoridhe ichiri kushandiswa nemutengo wegoridhe.
goridhe