China People's Republic 1950 (July) surcharges on Sun Yat-sen NEP issue. Basic set of 14 to $400 on $300 blue-green, SG1436/49ex. Centring is a little variable although rarely seen so fresh and unused. (Catalogue value: £700).
Great Britain 1958 2d light red brown (Blotchy print) "Dollis Hill Phosphor Trial". Very fine perforated block of four on gummed unwatermarked specially prepared handmade paper, with an all over green phosphor. Scarce. SG Specialised Catalogue Number: ST5(3)a. SG573var.