The cubes were tiny - small enough to hold between the finger and thumb - and weighed 125g each. The symbols on them appeared to be some form of Sanskrit. Curious to know more, Read posted photographs of his discovery up on social media. "There were all sorts of stories flying around at first, the cubes really captured people's imaginations," he said. "What I learned is that they are Indian in origin and they show incantations for prayers which take effect when they are thrown in running water." Exactly how old the cubes are, however, continues to remain a mystery.