Our second collaboration with Tschanz Rare Books and Johnson Rare Books & Archives.  McBRB highlights include a handsome photo album depicting life at the Grand Canyon Lime & Cement Co. mines in Arizona; a rare lithograph of the largest mass execution in U.S. history (of Native Americans, of course); a rare Colorado soil conservation pamphlet from the 1930s; and a wax museum broadside advertisement from San Francisco.  Enjoy!