In that case the 2/- ought to pre-date the siege that started in the autumn, i.e June, July or August/early-Sept. It should be possible to confirm this by comparing punch wear for the letters given the same dies are involved. It would also imply the dies used are the first ones made at Pontefract. The question really is, who would be that important? Charles is locked up, Prince Charles is in France, Rupert and Maurice are in exile on the continent. There aren't a large number of important Royalists about. In the overall scheme of things, Langdale was one of Charles' most important commanders, running the show in the north of England.