Watch List notes:

(g) The Penny Black 170th Anniversary Coin and Stamp Set, Proof Crown, 2010, struck in .999 fine gold with pearl black finish, crowned bust right, rev. Penny Black stamp, milled edge, 12h, 1.35g, brilliant as struck; 1840 Penny Black plate 3, lettered 'BH', three good to large margins, cut into at top right, neatly cancelled by large part of red MC, fine..

Estimate: £80 - £100