Wiltshire 17, Salisbury (Dalton & Hamer, page 315)

Denomination: halfpenny, scarcity: Extra rare (RRR)
17.  O: A head in profile to left. PAYABLE . AT SALISBURY. Same for Nos. 12-18.
     R: Bust to left in cocked hat. MAY THE FRENCH EVER KNOW HOWE TO RULE 
        THE MAIN +

No. 17, RRR.

Keywords

payable at salisbury,may the french ever know howe to rule the main