1898 (9 FEB) stampless cover to Chelsea Barracks London endorsed at upper right « Stamps Unobtainable » with fine strike of type 6 BURUTU boxed ds (sans-serif caps) in dull violet applied in transit. Charged postage due on arrival with 2d/466, ½d/466 and « T/LV » hexagonal tax markings at front. Light cover fold though a neat and very scarce cover especially unusual with the separate charge marks