cover 1918 pair of large envelopes (235x150mm.) registered to Geneva, one bearing 3c. on 3k. (2) and 50c. on 50k. cancelled by Shanghai double-ring d.s. in French (Type 6A); the other bears 3c. on 3k., 10c. on 10k. and 25c. on 25k. similarly cancelled (Type 6B). Some creasing

Details
cover 1918 pair of large envelopes (235x150mm.) registered to Geneva, one bearing 3c. on 3k. (2) and 50c. on 50k. cancelled by Shanghai double-ring d.s. in French (Type 6A); the other bears 3c. on 3k., 10c. on 10k. and 25c. on 25k. similarly cancelled (Type 6B). Some creasing