Field marshal and commander-in-chief of the British expeditionary forces in France and Flanders during WWI. ALS signed 'D. Haig,' one page, 7 x 9.25, Headquarters, First Army letterhead, November 12, 1915. Letter written from the front describing early experiments with grenades. In part, 'I recently saw some experiments carried out by a bomb thrower invented by Lieut. Forbes - A small one (like a walking stick) throws a bomb 75 yds. The whole management seems so simple that I believe it might be of very great value in trench fighting where as you know so much depends on throwing a large number of bombs very quickly.' Expected folds and some scattered light spotting and toning, otherwise fine condition. RRAuction COA.