1d. black, plate 11, block of four, lettered DE-EF, clear to large
margins, unused, without gum, a few trivial marks of no
1d. black, plate 11, block of four, lettered DE-EF, clear to large
margins, unused, without gum, a few trivial marks of no importance,
mentioned for strict accuracy, a most appealing and important
multiple from this rarest of plates, ideal for exhibition. Gi. AS73
= .£125,000 Literature: Illustrated in Guide Lines to the Penny
Black, P.C. Litchfield, page 99. Provenance: Collection G. Watkin,
Robson Lowe, 4-5 October, 1944, lot 638. Collection
Rose-Hutchinson, Robson Lowe, 30 March, 1949, lot 226. Collection
Bremner, Robson Lowe, 23 November, 1949, lot 201. Robson Lowe, 6
May, 1953, lot 211. Robson Lowe, 2 December, 1953, lot 205.
Collection Silkin, Harmers, London, 14-16 June, 1971, lot 37.
Collection Alan Holyoake, GBPS Newsletter, July-August, 2006