Watch List notes:

Hackney, David Rebello, Skidmore's mule Penny, 1795, DAR cypher, rev. bust of William III right
in oaken wreath, edge plain, 36mm/27.62gm. (DH 22). Extremely fine with almost full original colour,
especially obv., oxidisation spot below bust, very rare.

Ex. Glendining's, 6 Jun. 1990, lot 453; Ex. DNW 5 Oct. 2011, lot 161.