David Feldman's Great Britain & British Empire June 12, 2018

Price on request Great Britain Paper Experiment with Trial Cancellation Private Treaty 1840 1d Black pl.7 left marginal irregular block of 8 from the paper experiments with manuscript “28lb” endorsement in the margin, all cancelled by the trial target cancellation (SG Spec DP20G). An exhibition showpiece from the development of the Penny Black.