1 Penny - Henry III Long Cross type, class 3d1

The Long Cross penny was introduced in 1247 under Henry III specifically to combat the widespread practice of coin clipping — by extending the cross to the coin's edge, any trimming of the silver would be immediately obvious. The class 3d1 designation places this piece within the third major phase of that reform coinage, distinguished by subtle variations in letter forms and crown details that occupied nineteenth-century numismatists for decades before a coherent classification emerged.

Spink 1364A and North 988/1 reflect a persistent cataloguing disagreement about subclass boundaries within class 3d.