A fine adult internal mould, more fully developed that CEN 4.0 showing sutures including the last with just over 1/2 whorl of body chamber showing uncoiling of the umbilical seam. It differs from CEN 4.0 in that the ribbing is continuous across the venter and the tuberculation is less strong. From Humble Point, S Devon.
Size: 120 mm dia
Size: 120 mm dia