Near the Maltese village of Maghtab stands a concrete sentinel from a bygone age. Known as a 'sound mirror', it was constructed during 1934-35, and is similar to structures that can also still be seen at Greatstone on the Kent coast. They were all intended to give early warning of approaching enemy aircraft. Known colloquially as the 'listening ears', the mirror on Malta was completed in the summer of 1935. It had been decided that five such mirrors would be built on the island, the first at Maghtab being designed to help protect the Grand Harbour. When completed it faced out to sea at a bearing of 20° towards Sicily.
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