175th Anniversary Penny Post, Miniature Sheet Cover, signed by John Holman

6 May 2015 marked the 175th Anniversary of the first ever postage stamp the Penny Black. Our cover celebrates this milestone anniversary with a special Mulready design cover, with the full miniature sheet and a Uniform Penny Postage London EC1 postmark.

Signed by John Holman, author of the long-running and popular "New Collector" series in Gibbons Stamp Monthly.