Constituting, in combination with the twenty-nine volumes of the eleventh edition, the Twelth Edition of that work and also supplying a new, distincitive, and independent library of reference dealing with the events and developments of the period 1910 to 1921 inclusive. Sunned spines, cover, edges and endpapers with some foxing or minor stains, Vol. XXI/XXXII spines damaged at upper edge, first and last pages with some creases, but text-block sturdy and overall in good condition.