Watch List notes:

Henry III (1216-1272), ‘Long Cross’ Coinage, Penny, Canterbury, Phase 1, Class 1b, 1.49g, obv. i.m.1?, henricvs rex•an, five dots below crown, rev. lie ter ci’ can (N.984;S.1359; Stewartby Ib), light even wear, toned, good fine, very rare..
:Bt A H Baldwin, January 2005The mintmark on this coin is made from a pellet punch cut over an 8 pointed star. According to Churchill and Thomas, the 8 pointed star appears at the end of the series, so whether this was an attempted obliteration or by design is uncertain.
Estimate: £100.00 - £150.00