Allison Butts in collaboration with Charles D Coxe. Published by Krieger Pub Co, 1975. HB blue cloth, black lettered spine. 148 x 230mm.  x + 488 pages, b/w illustrations, drawings, graphs, in text.  Everything you wanted to know about silver.  ISBN 0882752782.  Corners bumped, cover a little grubby, internally very good and clean.