Watch List notes:

Mary, half testoon, first period before marriage c. 1542 – 1558 (d. 1558), small high arched crown over shield dividing MR, no annulets below, MARIA DEI G SCOTOR REGINA 1558, rev. cross potent with cross in each angle, IN VIRTVTE TVA LIBERA ME 1558, wt. 3.01gms (S.5413), rare, a bold fine
*ex Murray auction – Spink no. 57, April 1987, lot 200
ex Dolphin Coins, February 2002, purchased for £450
All Mary half testoons are rare

Estimate: 350 - 450 GBP