cover 1884 (6 Dec.) envelope (a little damaged at edges), with original letter, to England, headed "Active Service No stamp available", showing Wadi Halfa c.d.s. (13.12), boxed "T" with manuscript "2½" alongside and showing, on reverse, Alexandria (20.12) and London (29.12) transit d.s. The letter, headed "About 1 mile from Dal", gives details of damage to boats by cataracts on the Nile, Colonel Buller's impatience with progress upstream and General Wolsely's orders. Photo