Potassium nitrate posters & prints

Crystallization of saltpetre (nitre, potassium nitrate, or KN03), 1683 Unknown

Production of saltpetre (nitre, potassium nitrate, or KN03), 1683 Unknown

Checking the quality of saltpetre (nitre, potassium nitrate, or KN03), 1683 Unknown

The Saltpetre Works Louis Jean Jacques Durameau

Cartridge from Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884 Unknown

Preparing and setting a Dynamite charge, Paris, 1890 Unknown

Workers at Nobel Explosives Company Limited, Ardeer, Ayrshire, 1884 Unknown