I bought this Platinum wedding ring back in the late 90's in NYC.
Its just hallmarked inside "PLAT" and s mirrored double sided R as show in here.
My Question to the experts in hallmarks, is it pre-80's ring or even older ring since its hallmarked just PLAT and not PT950 or pt.(with fitness mark).
Since its my wedding bank I'm Very curious about and and any help will be appreciated.
The ring's hallmarks in the photo link belowhttps://flic.kr/p/2k7jXT7