This is a 17th. century token, the PAS explain the context:
'To deal with a lack of small denominations in the regal coinage civic institutions and individual business people issued copper-alloy tokens between 1648 and 1672 (1679 in Ireland); the end date resulting from the reintroduction of farthings in copper alloy by Charles II.
On the obverse RICHARD.SHORT.IN.WARDENTON with the Grocers Arms
On the reverse IN.YE.COVNTY.OF.OXON.MERCER and in the centre HIS HALF PENY
Beesley had an example in his collection, see his History of Banbury p. 479
The British Museum has one that they date between 1649 and 1672 and another one was sold in 2015
Assorted genealogical sites, none of which I can vouch for, have him born in 1638 and dying in 1715. His wife, name unrecorded gave birth to a daughter Anne in 1674. It seems likely, therefore, that the token dates from the late 1660s/early 1670s.
His headstone in Warmington churchyard reads, "Here lyeth the body of Richard Short who departed this life April 1st 1715”.