Great Britain 1913 1/4d yellow green colour trials, SG351var.
A very fine unmounted full original gum imperforate corner marginal block of four on simple cypher watermarked paper. Some minor soiling and gum creasing not detracting from this rare trial that is presently unlisted, but to be included in the next GB Specialised Volume 2 catalogue.
Accompanied with a 1994 British Philatelic Association Certificate of Authenticity.
