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Lot 50151 – 1959 “Dollis Hill Phosphor Trial” on 3d deep violet Wilding in lower right corner marginal block of 6

1959 "Dollis Hill Phosphor Trial" on 3d deep violet Wilding in lower right corner marginal block of 6
Lot 50151 – 1959 “Dollis Hill Phosphor Trial” on 3d deep violet Wilding in lower right corner marginal block of 6
Great Britain » Queen Elizabeth II
Price realised
Unsold
Estimate
200 – 300 GBP
Auction date
Fri 7 Jun 2019 at 14:00 (Europe/Zurich)
Description

1959 “Dollis Hill Phosphor Trial” on 3d deep violet Wilding in lower right corner marginal block of 6 (2×3), with the left hand column showing two 1 1/2mm blue phosphor side bands and the second column with a 1 1/2mm blue phosphor left band, both printed under the ink, very fine and scarce (SG Spec ST7(4)a & 7b, £1’800+)

Note: For more information on these trials, see “The Dollis Hill Find: Mechanisation of the Mail and Phosphor Trials on Wilding Portrait Stamps” by Edward Klempka, available from the GB Philatelic Society

1959 3d Deep violet €œDollis Hill Phosphor Trial€œ. Very fine corner marginal perforated block of six on gummed crowns watermarked (upright) paper, the left hand column with two 11/2mm blue phosphor side bands and the second column with a 11/2mm blue phosphor left band, printed under the ink. Scarce. Spec. ST7(4)a/b.
Catalogue ref: SG 575 var

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