TRUE BLUE MIRROR/COBALT BLUE THAT IS.

I BOUGHT THIS COBALT BLUE MIRROR (approx. 5' X 3') AT AN AUCTION. DIDNT & DONT KNOW MUCH ABOUT IT BUT IT IS STUNNING. THERE ARE A FEW SCRAPES ON THE BACK OF THE MIRROR THAT YOU CAN SEE FROM THE FRONT BUT THEY ARE MINIMAL. I HAVE FOUND SEVERAL ARTICLES ON BLUE GLASS BUT I CANNOT FIND ANYTHING ON A LARGE MIRROR OF THIS SORT. IT'S STAMPED ON THE BACK: PITTSBURGH GLASS CO., JUNE 9, 1953, LITTLE ROCK, AR. CAN ANYONE POSSIBLY TELL ME THE MARKET DESIRE AND POSSIBLY THE VALUE OF A MIRROR LIKE THIS.