Alderney fisherman, Bertie Cosheril, found a long concreted object tangled up in the back-line of one of his lobster pots. Several days later Bertie took it to the Alderney Museum whose then curator agreed with him that it was most likely a nineteenth century shoulder-arm. Back at home he broke away the concretion with a hammer to reveal a musket.
The local dive club was the next port of call – Fred Shaw and Dave Rendell decided the site was worth investigating. It was agreed that they would rendezvous at sea with Bertie, at a spot not far from where the musket had been recovered. It was early evening when they met; there was a breeze and the sea was ‘lumpy’. Bertie took them to the location and while Dave remained on the surface to look after the boat, Fred dived. Bertie’s last words before heading off to tend his pots were:
“I hope you find a cannon, Fred”.
Fred made his descent directly on to a cannon. Moving out he found a second cannon and a timber which was ‘flapping slightly in the current’.