three mixed metal trephines with conical crown and spiral teeth, possibly American, late 19^th Century, one with removable ebony handle – 12cm. (with handle), 11cm. (without handle); an English, 19^th Century, stamped HILLIARD, metal and ebony handled Hey-type saw – 17cm. (length); and a 19^th Century, metal and ebony handled Hey-type saw – 20cm. (length); a lenticular, 18^th Century, steel and turned lignum vitae handle -- 15.5cm. (length); together with, a possibly 18^th Century, metal and wood brace and bit cranial trephine (without bit) – 17cm. (length)

Note: Previously bought Christie’s, South Kensington 3^rd March, 1992 (Lot 83). Hillard skull saw previously bought David Stanley Auctions, 10^th November 1999 (Lot 858). Second skull saw previously bought David Stanley Auctions, 29^th March 1997 (Lot 459). The brace and bit cranial trephine previously bought David Stanley Auctions 30^th September, 1995 (Lot 1335).