Slough, William Till and John Peckham, mule Halfpenny, 1794, in copper, arms of the Till family, rev. arms of the Peckham family, edge plain, 11.85g/12h (DH 26; Preston-Morley 1051). Characteristic die flaw on lower left reverse, extremely fine and extremely rare; only two others noted as having been on the market in the last 40 years (£200-300)