1901 (Hong Kong) Base Office A (6 July) incoming envelope addressed to an Indian hospital assistant at the 51 Native Field Hospital at Shan-Hai-Kwan, mailed from Raipur in India, without stamps. On the front of the envelope there is a framed "Postage Due One Anna" due handstamp, with "POSTAGE CANCELLED BY / CHINA E.F. BASE OFFICE 6 JU. 01." applied in transit at the Base Office Hong Kong, with F.P.O. No 6 arrival cds on back (The C.E.F. postal authorities passed the unpaid mail to the recipient without any charges, canceling the postage due at the Base Office) (Image)

Est.US$300