8vo. First editions. All printed wrappers, each volume 64 pp., introduction, illustrated. An interesting and informative series about gold and silver mining in Colorado. Six Guns 832 says "Scarce." "Tells about the robbing of the Delta Bank in 1893 by the McCarthy gang." (Book III). All books are in fine condition. Housed in a clamshell case with titles stamped in black ink on front cover and spine.
Inventory Number: 31048