Mermaids Purse

This treasure is on my dresser ( still with the original sand ) .Found years ago on a beach in Ireland it once contained a shark egg. .How long it had been where I found it and did the young shark develop I have no idea.I believe it may well have.. .Another example of how clever nature is plus it holds memories .Beaches such as that are  special remote places that never leave the mind .After a morning sorting it's time to go out and the sky is clearing .