Coins from Edward III’s 3rd issue, the Florin coinage, are divided into two groups. Firstly, the rare Unusual types A to E and secondly, the Normal (or Main) types 1 to 4. Durham coins are dealt with separately. Occasionally a coin turns up which throws some new light on the issue, in this case the chronology of the earliest coins produced in the series. It is such a discovery by the author which is the subject of this note.
Early letter forms in the Edward III coinage 1344-1351 – Denis Martin
BNS Research Blog 