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48 Primitive Greece : Mycenian Art. bears marks of bronze nails, two of which are still buried in the stone. Right and left of the doorway there is a row of sealing- holes, five centimetres broad by three centimetres deep (Fig. 257, pp, p' p'). The space between them corresponds with the width of the sill ; some of these cavities also contain ancient Fig. 257. — Tomb I. Elevation of entrance wall and section through lintel. nails. Other and similar traces are seen at w. The line of nails represented by the letters pp is in the same vertical plane as the groove of the threshold ; thus far extended the timber case, the ** built " part enframing the doorway. Every- thing points to the existence of a bronze epidermis between
