Mercedes Gleitze (1900-1981) - British professional swimmer
Mercedes Gleitze (1900-1981) - British professional swimmer. She was the first person to swim the Straits of Gibraltar and the first British woman to swim the English Channel. All the funds from the sale of this specific postcard were donated to the Mercedes Gleitze Fund for Destitute Men and Women to establish a home for those in poverty. The name of Mercedes Gleitze was used to market Rolex's new waterproof case, the "Oyster". Date: circa 1930
© Mary Evans / Grenville Collins Postcard Collection
Rolex Oyster Wrist Watch advertisement
Advertisement for the Rolex Oyster Wrist Watch, the most accurate wrist watch in the world made waterproof. To prove it, Jabez Wolffe, the famous swimmer and trainer of Channel swimmers is pictured with one of his pupils Miss West, endorsing the watch's ability to withstand severe conditions.
© Illustrated London News Ltd/Mary Evans
Underwater theodolite off the coast of Malta
Diver using a theodolite to survey the best location for an inflatable house which was anchored to the seabed, some 50 feet deep, in Paradise Bay, off the coast of Malta. He is writing something down on a waterproof clipboard. It was equipped with lighting, telephone and immersion heaters with which the inhabitants could make hot drinks. It was constructed by teams of engineers and diving enthusiasts from Imperial College of Science and Technology and Enfield College of Technology. It was 9ft long and 6ft wide, constructed from rubberised material on a steel frame, and weighed around 500 lb. The team leader was David Baume who hoped it would be the first of a series of low cost underwater living spaces from which scientists could explore the seas. David and some other team members were able to spend a night 30 feet below the surface. The following day a severe storm caused the house to collapse.
© Mary Evans Picture Library/DAVID LEWIS HODGSON