cover 1902 (Aug.) envelope to Sweden and redirected internally, bearing 1891-1902 2½d. pair cancelled with F.4 c.d.s. and showing, on reverse, a superb strike of the "S.Y. 'ANTARCTIC'/SWEDISH/EXPEDITION" oval-framed cachet in violet and three Swedish transit c.d.s.; the envelope with corner fault, otherwise fine and rare. Photo