Watch List notes:

BRITISH COINS, Scotland, Mary Queen of Scots, Silver One Third Ryal, 1567, with re-valuation countermark of 1578 for Twelve Shillings and Threepence, crowned Scottish arms, thistle each side, toothed borders and legends surrounding, MARIA DEI. GRA. SCOTORVM. REGINA., rev tortoise climbing crowned palm tree, banner motto DAT GLORIA VIRES across trunk, date either side, toothed borders and legends surrounding, initial mark thistle, EXVRGAT. DEVS. &. DISSIPENTVR. INIMICI. EI9., 9.92g (SCBI 58:1230-1232; S 5431). Toned with mount mark on edge, almost very fine and rare.
ex A H Baldwin & Sons Ltd, c.1980

Estimate: £250-350