Based on the Chapman forceps, in turn a modification the oldest examples of obstetrics forceps in existence, the Chamberlen forceps.

“A forceps of somewhat similar pattern (to Chapman) but having a different kind of lock may well have been the instrument employed by Dr Walker (?1740), the last survivor of Dr Peter Chamberlen’s obstetric progeny”. Note the lack of pelvic curve. A similar pair are in the Edinburgh Obstetric Museum as reference on P 108 of Das’ “Obstetric Forceps”.

• From the Phisick collection