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Figure 21: Front of the bank. Section 2, Area 1
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Period 1 - The front of the clay bank to left , with the truncated remains of the substantial turf revetment , showing the cut for the insertion of the wall  (period 2).
Period 2 - Only four stones of the back of the lowest course of the added stone wall remain in position. These are overlaid by the clay packing inserted behind the wall [19/62], here with a slight turf layer , slightly slipped forward. The front of the wall is placed in the slight slot in the pre-bank subsoil. The berm is covered with a layer of fine mortary rubble , which in part represents the construction deposits of the wall, as well as the degradation products of the wall over a long period (2B), and possibly also part of the the upcast from the cleaning out of the ditch in period 2C. The stones in this deposit form well-developed tip lines.
Period 3 - The pile of large and small loose stones and mortar, which gives way to the right to a deposit of stones and mortar showing clear tip lines , View Section is derived from the destruction of the wall.
Period 4 - The stone and mortar deposits of period 3 are cut by a shallow feature  which is the palisade trench of period 4, filled with dark earthy material [29/43/60], together with stones and mortar from earlier deposits.
Compare sections in similar positions in Figs 15, 25, 29.