Silver Pocket Watch for Aurora Relief Expedition Chief Officer

A silver presentation pocket watch given to C. P. De La Motte,…
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A silver presentation pocket watch given to C. P. De La Motte, chief officer, Aurora relief Expedition, 1916, the Longines sterling silver pocket watch with engine turned decoration, engraved to the inner case 'Clarence Peterson de la Motte for his part in the mission to rescue the Ross sea survivors of Shackleton's ill-fated Trans Antarctic expedition', de la Motte was awarded the bronze polar medal. 5 cm diameter

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  • Engine Turned - Engine turning is a decorative technique used on metal surfaces to create intricate curving or geometric pattern. The process involves cutting a series of lines into the surface of the metal using a rose engine or decoration lathe which rotates the metal as it cuts, allowing the operator to create a repeating pattern that covers the entire surface. The resulting surface has a shimmering, reflective quality that is often described as "engine turned." Where an engine turned item has been enamelled, the term used to describe the decoration is usually guilloche.

    Engine turning was originally developed to decorate metal objects such as firearms, scientific instruments, and other metal objects that required precise and elegant design.
  • Bronze - An alloy of copper and tin, traditionally in the proportions of about 9 parts of copper to 1 part of tin.

    The discovery of bronze in Western Asia in the 4th century enabled people to create metal objects which were superior to those previoulsy possible because of its strength and hardness, and it has been used throughout the world for weapons, coins, tools, statuary and other decorative items.

    It is very fluid in a molten state, and its hardness, strength when set, and non-corrosive properties makes it most suitable for casting sculpture.
  • Sterling Silver - Sterling silver is a mixture of 92.5% pure silver and 7.5% of another metal, usually copper. Fine silver is 99.9% pure silver, and is relatively soft and the addition of the very small amount of copper gives the metal enough strength and hardness to be worked into jewellery, decorative and household objects.

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