Auction: 23023 - The Lionheart Collection of Great Britain and British Empire Part XVII
1910-13 Double Head Issue
2/6d. RSC "A", brownish red and carmine-red, Hook printing
[17-22] vertical pair,  with printer's guide dot at upper right for and  with "co" flaw in "company", neatly cancelled with light double-ring datestamp; a few ragged perfs., otherwise fine and rare. Robert M. Gibbs Certificate (2013)
Gerald Simpson, December 1982
Robert H. Gibbs, October 1987
Subject to 5% tax on Hammer Price in addition to 20% VAT on Buyer’s Premium.