Æ 25.5mm diameter, 5.57 grams.  Laureate bust of Cromwell left, KIRK FEC at sides.  Rv. OLIVAR CROMWELL 1658 in three lines across field.  M.I.i, p.435, 86. Warburton 080.  The reverse appears to have been brushed, otherwise much original colour and about EF

These were issued with the Sentimental Magazine in 1773-4.