Large axe blank from the Neolithic period, ca. 4350-6000 BP.  The blank is made from flint and was dredged from the River Thames in 1890.
The artefact is curated by the Australian Institute of Archaeology, catalogue no. IA24.154.

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The axe blank in this model was roughly flaked to shape by hard-hammer percussion, but discarded prior to refined flaking and grinding.  The blank is mostly bifacial, with a relatively flat profile on one face and a convex profile on the opposite face.  Flakes were struck from a third platform edge across the convex surface, perhaps to lower its height and thin the axe blank somewhat.  The axe blank is technically ‘trifacial’ with three working faces.  The antiquarian’s tag on one face reads ‘Thames/Dredged’, although the next word is llegible.  The date on the last line appears to be 1890.  The blank is patinated and polished by taphonomic processes consistent with residing in the Thames for a substantial period.

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Stone axes appear in the European Mesolithic period by about 10,000 BP and proliferated during the Neolithic, from about 3700 to 7500 BP.  Hundreds of thousands of stone axes have been found across Europe, and they are one of the most common tool types of the Neolithic.  Most researchers believe that they were an essential tool for clearing forests for agriculture.  An array of different axe forms were made and used across this period, but most varieties had cutting edges produced by grinding—referred to in Europe as ‘polished’ axes.  Some types were completely ground across all of their surfaces, while the grinding on others was limited to the cutting edge.  Grinding was a laborious process, particularly on flint axes.  Cross sections ranged from rectangular to lenticular or nearly round, and axes varied considerably in shape and size.  Axes of prized stone were traded widely between Neolithic groups across Europe.
Axes were set into a hole made in a wood shaft handle.  Because the axes tapered backwards from the cutting edge, they wedged into the hole with use.  Several stone axes have been recovered from sites with the handle still intact.  An ‘axe’ was hafted with the cutting edge parallel to the shaft, and an ‘adze’ was hafted with the cutting edge at right-angles to the shaft.  The edge is centred on an axe, but offset from the centre on an adze.
Stone shaft-hole axes (or ‘battle axes’), usually made of igneous or metamorphic stones, appeared by about 4800 BP and persisted into the Bronze Age.  These were often ornate in shape and were perforated to receive a relatively thin wood handle.  The perforation was drilled using a hollow bone or wood.  Stone axes with pecked grooves (‘saddle-grooved’ axes) were made and used during the Bronze Age in Bavaria alongside metal axes, and grooved stone axes were used to mine and process copper ore in southern Italy.
Large  ‘prestige’ axes, often expertly made of spectacular stones, were interred in graves or buried together in caches.  While some caches included only unused prestige axes, others included axes in all stages of use and repair.  In Denmark alone, 171 caches, comprising about 500 axes, have been found and reported.  One author notes that, in Sweden, stone axes ‘were deposited in almost every single bog’, probably as part of ritual activity.  These various patterns suggest that axes were not only functional tools, but were also important in a social context.  Their symbolic importance continued into the more recent past: ancient stone axes were collected from archaeological sites since Medieval times as amulets that provided protection to life and property.
The axe blank in this model was roughly flaked to shape by hard-hammer percussion, but discarded prior to refined flaking and grinding.  The blank is mostly bifacial, with a relatively flat profile on one face and a convex profile on the opposite face.  Flakes were struck from a third platform edge across the convex surface, perhaps to lower its height and thin the axe blank somewhat.  The axe blank is technically ‘trifacial’ with three working faces.  The antiquarian’s tag on one face reads ‘Thames/Dredged’, although the next word is llegible.  The date on the last line appears to be 1890.  The blank is patinated and polished by taphonomic processes consistent with residing in the Thames for a substantial period.