Neolithic, 5th-2nd millennium BC. A mixed flint group comprising: an adze with square edge and butt, circular socket; a two-edged dagger with rounded butt; a hammer with beginnings of the ground socket to both faces. 624 grams total, 10-22cm (4 - 8 1/2"). From an important central London collection formed since the mid 1960s; thence by descent. [3]