cover 1911 (26 Aug.) opened-out envelope, registered from Lhasa to Shanghai bearing 1a. on 4c. with 6a. on 30c. tied by "LHASA.TIBET" c.d.s. with registered h.s alongside; the reverse with India 4a. and ½a. tied by "YATUNG-TIBET/VIA SILIGURI" c.d.s. and registration label type BR.3 handstamped "YATUNG-TIBET/F.P.O.NO.70"; attractive and scarce. Photo