Here's a quick comment on the "Guide to plate rims" page. You've taken the dating information from Cotterell's 'Pewter down the ages', but much of this dating would no longer be accepted as correct. In particular: Type 1: Cotterell's dating here is completely wrong because the dated touch on which he based his date is now known to be fake (see PS5376). Incised reeds seem to come in slightly earlier than cast reeds, then the two run in parallel for a little while, then incised reeds fade out earlier than cast reeds. A date range of 1660-1680 is probably reasonable.