This note concerns an early Edward II penny, of class 10c-f, crown 3, struck mid 1307 – 1309.
An Interesting Re-cut Penny Reverse Die for Early Edward II – D. I. Greenhalgh
This note concerns an early Edward II penny, of class 10c-f, crown 3, struck mid 1307 – 1309.
BNS Research Blog 
An interesting coin and a type that we all live in the hope of finding. It appears that the die has been re-cut or letters over-struck into the die rather than over struck on the coin which would of course be a lot less tidy, so I would think that London was what was intended and where it was issued from.
We know that dies were sometimes sent from London to Canterbury and back again, when there was a need at Canterbury ( the class 6b Cant comes to mind)
I note with interest that the coin in the picture has a colon after the “B”. I have five Ed 1 Coins with colon/triplon after the B. Do you know of any recent research about colon/triplon coins? Do you also know of someone who could give me advice about a class 4 Robert de Hadeleie coin I have just purchased?
A lot of research was undertaken by Paul and Bente Withers for their book ‘The Galata guide to pennies of Edward I & II’. For your RDH coin I would suggest putting a photograph on the Facebook group English Hammered and Early milled coins. There are very knowledgeable hammered specialists and dealers regularly posting on that group