Watch List notes:

BRITISH COINS, Scotland, RENFREWSHIRE, Port Glasgow, Robert Crighton, a MEXICO, Ferdinand VII, 8 Réales, 1821rg, Zacatecas, obv. countermarked robt. crighton pt. glasgow around 4/6, usual curved rope-like mark on reverse, 26.18g (Manville 87 and p.169, this coin not listed; KM. CC 89). Coin about fine, countermark good fine, rare £900-1,200