sheet (188x275mm.) dated "9th Jany 1911" bearing four ¼d. colour trials in two shades of rosy mauve, in carmine-red and in red, the last marked "Approved, WHM, 11.1.12"; also both ¼d. colours affixed to piece and overprinted "SPECIMEN" (Type D12), both a little soiled; a vertical fold does not affect any trial. Photo" /> Proof <I>"Appendix"</I> sheet (188x275mm.) dated<I> "9th Jany 1911"</I> bearing four ¼d. colour trials in two shades of rosy mauve, in carmine-red and in red, the last marked<I> "Approved, WHM, 11.1.12"</I>; also both ¼d. colours affixed to piece and overprinted "SPECIMEN" (Type D12), both a little soiled; a vertical fold does not affect any trial. Photo | Christie's