Riddle of the Rhine, The By Lefebure, Victor Books / Hardcover History: Military › World War I Publisher: Chemical Foundation, January 1923 Price $13.89 Free Shipping Send to a friend Used - Acceptable Acceptable condition. No Dust Jacket Foxed and toned. Stamped on front endpage. A couple of torn and chipped pages. Slightly dampstained. (Chemical Warfare, Gases, World War I) $13.89 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.