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roller presses

This is a row of old Roller Presses machine tools that were powered by steam.­ They were used for minting silver coins.­ A Roller Press is used for flattenning bars of metal, which can then be stamped and coined.­

It is located in the Casa de la Moneda, the old Spanish mint where the silver from the mines of Potosí was transformed into coins.­

The original minting machines are preserved in a near-perfect state.­ The oldest machines were made of huge wooden gears and powered by slaves or animals (depending on availability).­ Later they used steam-powered machines, but luckily they kept the old machines untouched (just in case!).­ This huge building is now a national museum.­

Route Quijarro, Potosi, Bolivia

Casa de la Moneda - Potosí (Bolivia)

This is the old Spanish mint where the silver from the mines of Potosí was transformed into coins.­

The original minting machines are preserved in a near-perfect state.­ The oldest machines were made of huge wooden gears and powered by slaves or animals (depending on availability).­

Later they used steam-powered machines, but luckily they kept the old machines untouched (just in case!).­

This huge building is now a national museum.­

Bolivia 171 photos

Photos taken in Bolivia in February and March 2010.­

Related series:

- Uyuni Train Cemetery (Bolivia).

- Silver Mine - Potosí (Bolivia).

- Argentina.

- Chile.