BUTE, Rothesay, Rothsay Cotton Works, a MEXICO, Ferdinand VII, 8 Réales, 1809th, Mexico City, obv. countermarked rothsay cotton works · around 4/6 1820, privy mark at base of rev. shield, 26.27g (Manville 92, and p.180, this coin not listed; Hodge, BNJ 2009, p.245). Coin about fine, countermark about very fine, rare £700-900

The undertype is Ferdinand VII