Antique Cast Iron Art Nouveau Parlor Stove. Do you know the maker?

I purchased this recently to use as a pedestal for a bronze bust. I was told it was made either in Troy or Albany New York. The dimensions are approximately 53" tall 18" wide and 15" deep. The top has a piece of marble that is not original to the piece. The back of this parlor stove has the maker's stamp in a circle between wings that matches the pattern. The letters in the circle appear to be GATX or GAK or something like that, with the words Fire..... something below. It is the most nouveau ornate that I have seen and I cannot find another like it. I would appreciate any help on information you might have such as maker and coal or just wood use? It came from the estate of a very high end international dealer. It is not black but believe it has been completely redone and the color is a dark cast iron patina. The maker's mark is in the 4th photo. There is a photo link that will show the mark. Thank you for your help. I like it no matter what info I find.