Nice silver shillings Aidan - here is on of mine from Newark Rok
Not "English" though with the English king.Ireland Bank Token 1813S 6618; Craig 9; KM Tn5
These tokens are typically of fine silver, but are light weight according to the standards of the time; 5 shillings and 2 pence coins per ounce of fine silver. But it was these standards that had prevented the mint from issuing coins, as they could not afford the silver at market prices and then issue coins only for them to be melted immediately by the unscrupulous. ... in 1813, by which the problems of an unregulated token coinage had appeared, with counterfeiting, reduced silver quality, reduced weight and some issuers refusing to redeem their tokens.