Etching and aquatint printed in sepia. Thomas Martyn's aerostatic globe was the first British design for a navigable balloon. It included an umbrella (or parachute) to afford and easy descent should the balloon burst, a mainsail, a foresail, a sail rudder to direct the machine, oars, and grappling irons to catch in the earth and ensure a smooth landing. Published by Thomas Martyn in London on 2 October 1784. Dimensions: 345mm x 280mm.
© Science Museum / Science & Society Picture Library