Title: I found this very useful.
Product review: I found the DVD to be a very useful adjunct toTitanic's Last Secrets: The Further Adventures of Shadow Divers John Chatterton and Richie Kohler, although I wish the main video or the extra stuff had shown the updated info on the expansion joints of Titanic and Brittanic. The extra stuff includes an older documentary on Titanic and her sisters, which helped shed a little bit of light on the question. If you liked the book, I highly suggest the DVD to help with putting all the information together.
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