22 inches in length. Alder wood, coated with beeswax. Based on the Thames example. Wood typically does not preserve well in the archaeological record, but the Thames beater was pulled out of the waterlogged soil on the north bank of the Thames River in the Chelsea area of London. It has been carbon dated to 3530-3340 B.C. and is now housed in the Museum of London. Described as a "very badly made cricket bat" that's much heavier at the tip. A surprisingly effective stone age weapon, the results of tests match exactly to trauma on a number of ancient skulls.
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