These oyster shells are over 100 years old and were dug up during the deepening of the Swan River in Perth Western Australia.
Indigo can also paint you a shell according to your colour choice.
The shells are $30 each plus $10 postage and packaging.
Mention code IndigoFreePostage for free postage and packaging within Australia.

​

"The mystery of the oysters.

From the early days of settlement (Perth, Western Australia) it was noticed that the river (Swan river) contained many hundreds of tons of oyster shells, but strangely no live oysters. Middens of shells on the bank meant that the local Aborigines had once feasted on the shellfish but all the oysters had apparently died out. The theory is that at some point in time the mouth of the river silted over and a large influx of fresh water killed the oysters in one major catastrophe. The defunct oysters did leave behind something of value, their shells. With a high lime content they were used to make cement by the Swan Cement Company and over 3 million tons of shell were dredged from the river between 1927-1956."

​

https://www.wanowandthen.com/Swan-River.html

​

​