Avon and Somerset Police are appealing for anyone who may have seen whoever smashed the glass in a bus shelter by Bath Abbey to come forward and talk to them.
It happened at around 6.50am on Sunday 3rd May.
Officers have heard from one witness, but believe there were more people in the area around Cheap Street and the Abbey at the time who may have seen the damage being caused.
Anyone with any information is asked to call 101 quoting reference number 45387/15.