I have been fortunate enough to see them with my real eyes as dealers here did own 3 ruble gold and 3 ruble platinum coins, both circulated. However, never have I seen a platinum 6 and 12 rubles, which makes me wonder if inflation started to occur around that time. In fact, I don't quite remember seeing anywhere on the net of 6 and 12 ruble coins any lower than XF. Mustn't have been popular at all.
My question is, what was a ruble worth at that time? What could one get with a ruble at that time? And assuming if 12 rubles were legal tender, what could that have possibly bought.