Lot 30393 – 1915 (Aug 7) commercial envelope from Canoton to Switzerland with 1912-22 2c and three 10c paying a registered letter over 1oz

1915 (Aug 7) commercial envelope to Switzerland with Hong Kong 1912-22 2c and three 10c paying the rate for a registered letter over 1oz, tied by Canton cds with registration boxed hs adjacent, violet bevelled framed « P.B.C. » (pass by censor) hs, endorsed via Siberia, reverse with Hong Kong reg’d transit and Basel arrival, central wax seal stain, fine.