Watch List notes:

British Tokens, Eighteenth Century Tokens, Middlesex, [Paul] Skidmore, halfpennies (2), 1795, guillotine and basket on platform, rev. busts of Louis XVI and M. Antoinette (DH.513), undated, Minerva with shield and pole supporting cap of Liberty, rev. cap of Liberty radiating (DH.514), extremely fine and patinated (2)
*ex Baldwin's vault
Neither token is extremely rare: their 'scarce' rating on p. 152 of DH is referred to by Atkins's numbers, 393 and 394.
Estimate: 130-180 GBP