Halfgroat of James I
The finder of this coin, Colin Barton, thought it could be a halfgroat of James I and asked if I could confirm his ID.
Firstly, this is a halfgroat of James I, which was struck during the third coinage. On the obverse is a rose with a crown above and a legend reading I D G ROSA SINE SPINA. On the reverse is a crowned thistle and the legend on this side reads TVEATVR VNITA DEVS. Both sides have the same mint mark: a thistle. The reverse legend has no stops, which is standard for the third coinage.
The coin would grade slightly better than Fine.
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