Scotland, Edinburgh, Scottish Mining Museum, National Coal Board gates.

Scotland, Edinburgh, Scottish Mining Museum, safety posters.

Scotland, Edinburgh, Scottish Mining Museum, safety posters.

Scotland, Edinburgh, Scottish Mining Museum, typical mining house set up.

Scotland, Edinburgh, Scottish Mining Museum, display with recording of Alexander Macdonald addressing a crowd.

Scotland, Edinburgh, Scottish Mining Museum, water pump.

Scotland, Edinburgh, Scottish Mining Museum, display 1500 ft down the mine to the mine head.

Scotland, Edinburgh, Scottish Mining Museum, mural.

China, Shaanxi, Xian, Building housing pit number 1 of the Terracotta army.

China, Shaanxi, Xian, Building housing pit number 1 of the Terracotta army.

Man dyeing cloth by hand in Indigo dye pits. Vat Clothes Material Colour Colouring Coloring Color Blue Violet African Male Men Guy Nigerian One individual Solo Lone Solitary Western Africa 1 Male Man...

Chouwara Tanneries. Man working at the tanner s pits.Fez African al-Magrib Fes Moroccan North Africa Fez African al-Magrib Fes Moroccan North Africa