Chronicle (1966)

The Treasure of Porto Santo (1977x13)

Air date: Nov 24, 1977

In 1724, a Dutch merchant ship sank off the Madeiras. A year later, an English diver, John Lethbridge, performed amazing feats of salvage. But how? Belgian diver Robert Stenuit reconstructed Lethbridge's 'diving engine' to produce an intriguing historical detective story and a new development in underwater archaeology. Re-aired 28 October 1979