THREE ROCK SPECIMENS,
comprising a grey and brown rock, a grey rock with brown striations, and a porus black rock
The grey rock with brown striations 6¾in. (17.1cm.) wide (3)
THREE ROCK SPECIMENS,
comprising a grey and brown rock, a grey rock with brown striations, and a porus black rock
The grey rock with brown striations 6¾in. (17.1cm.) wide (3)