Proof Block of Four De La Rue dummy stamps - a design comprising Q.V. head facing to left and "LONDON" at foot; three imperforate blocks of four, each affixed to extract from ink recipe book (172 x 70mm.), in aniline purple for "Dominica 1d. Postage" and "Same as clients Hong Kong Recipe No. 67", in green for "Dominica 6d. Postage" and "Same as 1/- English Postage Recipe No. 609", and in magenta for Dominica 1/- Postage" and "Same as Recipe No. 732"; each accompanied by photostat of the full recipe.