Combing the strandline often delivers a pocketful of cockles and other clam shells with a neat hole close to where the hinge would have been, in a thickened region of the shell called the umbo.
The hole is a precision job – rounded, smooth and…

Combing the strandline often delivers a pocketful of cockles and other clam shells with a neat hole close to where the hinge would have been, in a thickened region of the shell called the umbo.
The hole is a precision job – rounded, smooth and…