essay Proof 1962 Health engraved imperforate essay proofs in close to issued designs, comprising 2½d.+1d. (3) in lilac, violet and grey, each with vignette in green, and 3d.+1d. (3) in blue, green and brown, each with vignette in brown, each trio accompanied by a proof of the vignette only in green and brown respectively, all eight affixed to single card with the proofs marked "A" to "F" and marked at top "As submitted 2.4.62". A remarkable group. Photo