Public domain photos

The image shows a small plastic container filled with rocks sitting on top of a table, with a scale and a paper with a QR code beside it. The rocks appear to be oyster shells, and the scale is likely used to measure the size of the shells.

The image shows a small plastic container filled with rocks sitting on top of a table, with a scale and a paper with a QR code beside it. The rocks appear to be oyster shells, and the scale is likely used to measure the size of the shells.Open in library