Found!
It is indeed an imitation sterling, John the Blind of Luxembourg, 1309-1346, Mayhew 263: https://www.sterlingimitations.com/...heblind.html
I thought my reading of the obverse legend could not possibly be correct, but it was.
It is indeed an imitation sterling, John the Blind of Luxembourg, 1309-1346, Mayhew 263: https://www.sterlingimitations.com/...heblind.html
I thought my reading of the obverse legend could not possibly be correct, but it was.























