This postcard of the Southwest Turquoise Co., 113 N. Broadway, has been listed on EBay. The shop would have been roughly across the street from the old Times Building at 1st and Broadway. Bidding on the postcard starts at $8.
The company’s cutting and polishing instrument was invented by a woman – Mrs. Gertrude S. Reynolds McMullen, a former science teacher who became interested in precious stones.
Clearly, she was ahead of her time in more ways that one.
She died in 1950 at the age of 78.