Design for a diving bell Product:Postcard Muhammad Ali is fighting his

Muhammad Ali is fighting his way back to fitness in his Bahamas training camp

one seated and the other standing

Surrounded by other seated figures

England 's Ian Botham in batting action

which the Duke of Portland is handing to them

Design for a diving bell Product:Postcard Muhammad Ali is fighting hisUnpublished plate from a paper on the art of diving by Anthony Fothergill FRS (1737 1813) and Granville Sharp. Submitted to Dr William Watson for publication in the Philosophical Transactions of the Royal Society, but not printed. The scheme shows an upturned boat with a single passenger. The boat is held in a wooden frame and a weighted rope is passed through its keel. By operating a pulley system, the diver supposedly can raise and lower the