A fine ivory neurosurgical set dating between 1783 and 1802

The set contains a hand trephine with two crown drill bits with adjustable centre pins, a combined bow shaped elevator and raspery, a Hey saw and a scalpel the latter both marked Laundy. They come complete in a fitted velvet lined mahogany case with brass catches.

The instrument maker Sam Laundy worked from 12 St Thomas’s Street Borough London in 1783 and in 1802 began trading from the same address as Laundy & Son.

• From the Phisick collection