Middlesex 773, Spence's (Dalton & Hamer, page 171)

Denomination: halfpenny, scarcity: Very rare (RR)
773.  O: A lean man on the ground, gnawing a bone. FRENCH LIBERTY.
         Same for Nos. 773-774, as No. 760.
      R: The arms of London, &c. FEAR GOD AND HONOUR THE KING. 1795.
      E: Plain.

According page 553, this one is the same as No. 922 and has to be deleted.

No. 773, RR.