David Feldman Great Britain & British Empire December 13 2019

134 Lot N° Symbol(s) / Photo Page Cat. N° (SG) Estimate ( £ ) Great Britain & British Empire 50537 CC P 491/2 1946 Victory 2 1/2d and 3d imperforate imprimaturs, mint nh with “N.P.M. Imprimatur” handstamp on reverse, very fine and very rare, one of only four sets released from the NPM archive sales. 1’000 - 1’500 Queen Elizabeth II 50538 50539 50538 CC P 556 var 1956 Wilding 1s6d grey blue mint nh imperforate IMPRIMATUR pair from the National Postal Museum archives with NPM handstamp on reverse, very fine and very rare with only four possible pairs 600 - 800 50539 CC 571 1958-65 Wilding 4d ultramarine, wmk Multi Crown mint nh imperforate imprimatur horizontal pair with “N/P/IMPRIMATUR” handstamp on reverse, very fine and very rare 600 - 800 50540 50541 50540 DCE P 573 var 1958-65 Wilding “Dollis Hill” phosphor trial 2d red-brown horizontal strip of four on ungummed unwatermarked specially prepared hand made paper, without phosphor, left stamp creased, scarce (SG Spec. ST4(1)a) 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 200 - 300 50541 CC P 573 var 1958-65 Wilding “Dollis Hill” Phosphor Trial 2d Light red brown on gummed unwatermarked specially prepared handmade paper, with all over yellow phosphor showing a strong phosphor response, very fine (SG Spec. ST5(4), £550) Note: Experiments with yellow phosphor were short lived due to fears of toxicity of the phosphor ink. 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 60 - 80 Find the BID FORM at the end of this catalogue on page 301