6 3/16 x 3 1/2 in. stereoview on cardstock mount. Central City, CO: Collier, n.d. (toning and light edge wear to print; some soiling and edge wear to mount). Paper label affixed to verso bears image number, title, and caption: "No. 130. Silver Bricks. The Silver Bars, thirty in number, here presented, are the product of the Boston & Colorado Gold and SIlver Smelting Company, Black Hawk, Colorado, and are piled in front of the Company's bullion rooms. They weight 2,200 lbs., and are worth $45,000." Part of Collier's "Rocky Mountain Scenery" series, this view features a large stack of silver bricks piled on a board outside of a building, with several gentlemen gathered around. -- 5 15/16 x 3 3/16 in. stereoview on cardstock mount. Fargo, Dakota Territory: F.J. Haynes, ca 1861 (minor wear to mount edges and corners). Ink inscription to verso reads, "1861 Mother Lode Idaho." Part of Haynes' Yellowstone Park Scenery and Northern Pacific Scenery series, this view shows a group of miners standing with shovel and pick in front of their mine. -- Together, 2 stereoviews.