I got this at pennies on the dollar! I know it is a damaged stamp, but it is a very early usage of a perfin pattern W.W/U.P (Wm Whiteley's Universal Providers, London W.2).
It is nicely centered for the issue. Overprint good and readable.
Since I could never afford a completely sound version of this stamp
this will do nicely (I collect perfins, not necessarily the stamps from GB). Enjoy
