Middlesex 510, Skidmore's (Dalton & Hamer, page 152)

Denomination: halfpenny, scarcity: Excessively rare
510.  O: A star. STAR HALFPENNY 1791. Same for Nos. 510-512, as rev. of No. 482.
      R: A cypher, W G M, &c. As No. 503.
      E: Milled.

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

Keywords

star halfpenny,1791,wgm,halfpenny,1791