Portrait of a smiling man looking to the left. He is wearing a hat, glasses, a suit jacket and vest, a collared shirt, and a tie. The name “F W. Bradley” is written on the negative and is visible on the left side of the photograph. The man may be Frederick Worthen Bradley, president of the Bunker Hill and Sullivan Mining and Concentrating company. He also served as president of the American Institute of Mining and Metallurgical Engineers.

Portrait of a man looking slightly to the left. He is wearing glasses, a suit jacket and vest, and a tie. The name “F. W. Bradley” is written on the negative and is visible on the right side of the image. The man may be Frederick Worthen Bradley, president of the Bunker Hill and Sullivan Mining and Concentrating company. He also served as president of the American Institute of Mining and Metallurgical Engineers.