Registration Envelopes. 1935 50c Stamp Die Proof in black on white glazed card, dated "2.1.35", endorsed "appd JS 3/1" and "Kenya 68/9/4", 90x63mm. A fine De La Rue proof, unique with these endorsements. This stamp was only used for the 1935 registration envelope (with the "Postage & / Registration" inscription added around the stamp). Photo on Page 146. (Image1)

1935 Part Appendix Page headed "Requisition No 6819/4, Kenya, Appendix 6th February 1935", bearing a Die Proof of the 50c registration envelope stamp in blue on thin card (32x38mm), the page endorsed "Appd for colour 7/2" and initialled. A unique piece from the De La Rue archives. Photo on Page 218. (Image1)

1935-37 50c Registration envelopes, size G overprinted "SPECIMEN", unused and used, size H used (2, Nyeri to Turkey franked 25c or Lugazi to Australia franked 15c), and size H2 unused or used to USA franked 25c. (7).