Wicklow 2, Cronebane (Dalton & Hamer, page 524)

Denomination: halfpenny, scarcity: Extra rare (RRR)
2. O: Artist proof of an unfinished die. Without crosier or jewels on top of
      mitre. CRONEBANE HALFPENNY.
   R: Blank.

No. 2, RRR.

Keywords

cronebane halfpenny,blank_side