Who invented the diving helmet? The First Treasure Divers reveals the true and fascinating story. It follows the lives of two brothers as they struggle to turn their newly-invented diving helmet to advantage and how they wrestle with apathetic and even hostile authorities for recognition of their invention.


Format Häftad Omfång 219 sidor Språk Engelska Förlag AquaPress Utgivningsdatum 2010-04-19 ISBN 9781905492169