Watch List notes:

IRELAND. Philip & Mary. 1554-1558. Base AR Groat (26mm, 2.65 g, 6h). Tower (London) mint; im: rose. Dated 1557. Confronted busts of Philip and Mary; crown above / Crowned harp; crowned P M flanking. D&F 237; SCBC 6501. Near VF, toned. Attractive portraits for issue.

From the D.C. Kopen Collection. Ex Davissons 31 (28 November 2012), lot 285.