Watch List notes:

The Bernard Pearl Collection of British Historical Medals | Nicholas Witsen, Ambassador to England and Amsterdam Burgomaster, AR Medallet, 1695, N • WITSEN CONS • AMST • AD REGEM ANGLLAE LEGAIVS MDCXCV, bust right, rev. LABOR OMNIA VINCIT, battering ram, with ram's head, breaking down a city wall, 24mm, 7.86g (MI ii 147/408; cf. van Loon III, 438), some light bagmarks to obverse and a touch of rub, otherwise toned and lustrous, a bolder very fine / near extremely fine, very rare

Provenance
The Bernard Pearl Collection of British Historical Medals

The reverse alludes to Witsen's skills as an engineer. He was an energetic politician, and had formed part of the delegation sent from Holland to congratulate William III on his Accession.