Vintage Sterling Silver Filigree and Genuine Turquoise Cuff, Late 70s

Hello Everyone.
Good Evening from Ontario.2018-04-27
By collecting jewelry for while now, looking for it every time I enter thrift store, was on the hunt for some nice bracelet, today is my luch to find 2 very nice Sterling piece for the 70s, could be older not sure since i just start this other passion.
Here you can see a nice sterling Filigree bracelet cuff with an enormous turquoise stone, the workmanship is wonderful on this piece, even i can find the silver mark, i am convince this is silver.