cover 1911 (7 Aug.) and 1913 (5 July) envelopes (220x102mm and 250x112mm) from the same correspondence registered to Vienna, bearing KE 2a. and 4a., and ½a., 3a. and 4a. cancelled by Types 28 and 18 respectively and showing registration h.s. Types 34 and 37 applied on unappropriated registration labels, the former also shows Hong Kong transit c.d.s. An attractive pair

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cover 1911 (7 Aug.) and 1913 (5 July) envelopes (220x102mm and 250x112mm) from the same correspondence registered to Vienna, bearing KE 2a. and 4a., and ½a., 3a. and 4a. cancelled by Types 28 and 18 respectively and showing registration h.s. Types 34 and 37 applied on unappropriated registration labels, the former also shows Hong Kong transit c.d.s. An attractive pair