Watch List notes:

Commemorative Medals, Netherlands, Leiden, Petrus (Pieter) van Schooten (1634-1679), mathematician, Professor of Military Mathematics at the Leiden School of Engineering and of Latin Mathesis at Leiden University, silver Memorial Medal, 1679, ACCIDIT IN PUNCTO ..., van Schooten in gown and cap, seated at his desk, working with a globe, rev. PIETRUS A SCHOOTEN PROFFESSOR MATHESEOS LEYDE, ornate shield of arms, 62mm. (vL.III, p.265), choice extremely fine
*ex Watts Collection
ex Baldwin's vault (800-1200 GBP)