Watch List notes:

Elizabeth I, pattern penny pledge in silvered copper, 1601, by C. Anthony, crowned bust three-quarters left, wearing high ruff, .+ THE.* ..PLEDGE*OF+., rev. crowned royal monogram, .A.PENNY., edge plain, wt. 2.05gms. (BMC.3; N.2051), good very fine, very rare
It is hard to ascertain whether the silver plating is contemporary or later.
(1500-2000 GBP)