There's no information as to your whereabouts, but I'd advise a trip to the library to take out a Spinks "Coins of England", (or buy it!). Edward II reigned from 1307 to 1327 and Henry VII from 1485 to 1509, though the coin I've identified is one of those in the first issues prior to 1489. Hopes this helps. (as with all hammered, there will be dessenting voices! )