Hallo from the UK
Can you help with the following queries pls?

1.  How can one drill a small neat hole into shells without cracking the
peripheral area?  Different technique/tool for thin and thick shells?

2.  What sort of techniques and 'tools' might ancient cultures have
used?

I know about natural processes such as predation by gastropod drillers
and abrasion which occurs to umbones of some bivalves (e.g. Glycymeris)
and other regions of shells.

All ideas, any literature references etc would be very welcome.

I enjoyed reading all that stuff on edible molluscs!
Jan

Jan Light
88 Peperharow Road
Godalming, Surrey
GU7 2PN, UK
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