held at Camp 23 (Monteith POW camp at Iroquois Falls, Northern Ontario, Canada), which is now the Monteith Correctional Complex. Bulldogs boarding party, led by Sub-Lieutenant David Balme, got onto U-110 and stripped it of everything portable, including her Kurzsignale code book and Enigma machine. William Stewart Pollock, a former radio operator in the Royal Navy and on loan to Bulldog, was on the second boat to board U-110. He retrieved the Enigma machine and books as they looked out of place in the radio room. U-110 was taken in tow back toward Britain, but sank en route to Iceland. The documents captured from U-110 helped Bletchley Park codebreakers solve Reservehandverfahren, a reserve German hand cipher. Wolfpacks U-110 took part in one wolfpack, namely: West (9 May 1941) Modern-day connections The 2000 film U-571 was partially inspired by the capture of U-110. In 2007, the submarine's chronometer was featured on the BBC programme Antiques Roadshow, from Alnwick Castle, in the possession of the grandson of the captain of the ship which captured her. Summary of raiding history See also U-571, a film inspired by the capture of U-110, erroneously claimed that the Enigma machine was seized by American submariners instead of the Royal Navy. Monteith POW camp (Camp 23) Other captured U-boats U-570, later References Bibliography Hugh Sebag-Montefiore, Enigma: The Battle for the Code, 2000, . External links Enigma and Operation Primrose 1940 ships Captured U-boats Enigma machine German Type IX submarines Maritime incidents in May 1941 Naval ships of Germany captured by the United Kingdom during World War II Ships built in Bremen (state) U-boats commissioned in 1940 World War II shipwrecks in the Atlantic Ocean World War II submarines of Germany