Watch List notes:

BRITISH COINS. Coins from the Estate of the Late Dr Mark Blackburn. Mary (1553-1554), Silver Groat, crowned bust left, initial mark pomegranate in legend both sides, rev quartered shield of arms upon cross fourchée (N 1960; S 2492). "X" mark in front of face, weak, toned, about fine.
purchased in Tunbridge Wells, 1968

Estimate: £60-80