Living in Berowra in the mid 1930s was a man named Bob Murray.
He married a woman whose maiden name was Mosley. When the marriage failed Bob went and lived in a very large cave west of the railway line.
This cave became known as Bob Murray’s Cave, my old stomping grounds. At the entrance of the cave Bob erected a small aqueduct over the watercourse, which became the threshold you had to pass over to get into the cave. On the horizontal slab he carved a single word.
This piece of broken stone we believe is a section of that slab – the spiral forming part of that word – can you guess what the word was?