Middlesex 500, Skidmore's (Dalton & Hamer, page 151)

Denomination: halfpenny, scarcity: Untraced
500.  O: Two men at a forge. MANUFACTORY . & . IRON-FOUNDRY . CLERKENWELL *
         Ex.: 1795. Same for Nos. 494-509, as rev. of No. 480.
      R: A cypher G B. FOR . THE . USE . OF . TRADE.
      E: Plain.

Nos. 480a-519, are with few exceptions exceedingly rare. 500 was not traced.

Keywords

manufactory,iron-foundry,clerkenwell,1795,gb,for the use of trade