Edward I, Bury St Edmunds Penny, Robert De Hadeleie

Back in 1279 Edward I changed the style of the coinage to the long cross penny. There were multiple mints working in England at the time, though London and Canterbury were the two main ones. One of the provincial mints was Bury St Edmund, a settlement to the north east of London in the county of Norfolk.

As part of the recoinage the names of the moneyers were removed and the town/city name was used instead.

All that is for this one instance in Bury St Edmunds where Robert De Hadeleie, continued to issue coins in his name.

Apparently the dies were approved in London and send on a "one in / one" out basis where an obverse die and two reverses were sent and only when the broken or worn ones were returned were a new set issued.

Scholarly work for this series suggests that there were 20 obverse dies used during the period (1279-1296) though this particular coin seems to be Type 3d which places it at 1280-1281. It is, however not certain just what, if any, were struck after 1284.

It's not a rare coin, but it's not exactly a run-or-the-mill one either. I can't seem to locate it's reference on Numista.
This is the link to the Edward 3d entry - (https://en.numista.com/catalogue/pieces52366.html) but obviously this Robert De Hadeleie ossue is quite distinctive and should have a separate category. Maybe I just can't search for it correctly.

The reverse legend reads ROBERTVS DE HADL'