Proof -- 1863 1a. to 20r. set of fifteen stamp-size die proofs with the secondary value tablets (usually printed in red) blank, together with a complete 1a. die proof in lilac and red overprinted "SPECIMEN", and similar stamp-size proofs for Receipt 1860 1a., 1861 ½a. and Customs 1863 1a., all inset on thick card (195x255mm.), the reverse of which bears Foreign Bill 1861 2a. to 6r. (12 values) overprinted "SPECIMEN"