Middlesex 516, Skidmore's (Dalton & Hamer, page 152)

Denomination: halfpenny, scarcity: Excessively rare
516.  O: A figure of Minerva. TRUTH FOR MY HELM & JUSTICE FOR MY SHIELD.
         Same for Nos. 514-516.
      R: Three fleur-de-lis. 1790.

Nos. 480a-519, are with few exceptions exceedingly rare.

Keywords

truth for my helm justice for my shield,1790