San Francisco: Thomas Houseworth & Co., 317 & 319 Montgomery Street, (1866). Ca 1874. Title caption & view number printed under right image. Square, separate images. 3-1/4" x 6-3/4". Yellow colored mount [rounded corners], with publisher copyright notice to right end; "Hydraulic Mining" to left. Yellow verso, with Houseworth's "Photographic..... More