A very fine internal mould, beautifully preserved on both sides and showing some sutures, including the last. The last whorl is body chamber terminating in a fine carved and polished head 25 mm long, in the most common style. The penultimate rib shows pathological rib growth on one side - there is a sudden change in rib direction and strength, the next rib is absent, followed by thicker and more prosiradiate ribs than usual, and it takes about another 10 ribs for ribbing to return to normal. The pathology is particularly obvious when one side is compared with the other.
Size: 62 mm diameter
Size: 62 mm diameter