The London mint was the most prolific of all of the English mints. Almost every farthing type was represented by this mint, and as such, there are a vast number of varieties.
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The later farthing types of Edward I used a new reverse legend: CIVITAS LONDON (the City of London). A number of distinct obverse legends can be used to subcategorise coins from this period:
To find out more about the farthing types, click on the obverse legend above.