Yeah but that I define as "monetary metal for Central Bank settlements" gold, not "day-to-day normal-people transactional currency". Was it still "money" / monetary after 33? Certainly, until '71 (42 years ago, not 39). But "currency" (circulating to facilitate/lubricate individual micro rather than macro exchange&trade)? Hardly ;) Also not "legal tender" -- as in, for courts enforcing contract liabilities or tax payments.
TL;DR: only outside the US, only to Central Banks.
