Ivory Handled Silver Trowel, Early 20th Century, Birmingham
Early 20th century ivory handled sterling silver trowel fluted tapering handle and engraved blade, Birmingham, date letter rubbed
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- 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.
- Date Letter on Silver - A date letter is a letter or symbol that is used to mark silver and other precious metals to indicate the year in which the piece was made. The date letter system is used by the British hallmarking system and it is a way to verify that a piece of silver is genuine and has been assayed (tested) by an official assay office.
The date letter system has been in use since the 14th century and it changes every year, so it is possible to identify the year in which a piece of silver was made by looking at the date letter. The date letter is usually stamped alongside other hallmarks such as the maker's mark, and the standard mark (indicating the fineness of the metal) on the silver piece. The style of the letters varies depending on the assay office, and the style of the lettering also changes over time. The date letter is usually placed inside a shield shape, sometimes accompanied by other symbols.
The date letter system is not used in all countries, so if a piece of silver does not have a date letter, it does not necessarily mean it is not authentic. The date letter system is not always used for small or insignificant silver items. - Engraving - The method of decorating or creating inscriptions on silver and other metal objects by marking the surface with a sharp instrument such as a diamond point or rotating cutting wheel.
- Ivory - Ivory is a hard white material that comes from the tusks of elephants, mammoth, walrus and boar, or from the teeth of hippopotamus and whales. The ivory from the African elephant is the most prized source of ivory. Although the mammoth is extinct, tusks are still being unearthed in Russia and offered for sale.
Ivory has been used since the earliest times as a material for sculpture of small items, both in Europe and the east, principally China and Japan.
In Asia ivory has been carved for netsuke, seals, okimono, card cases, fan supports, animals and other figures and even as carved tusks.
In the last 200 years in Europe ivory has been used to carve figures, for elaborate tankards, snuff boxes, cane handles, embroidery and sewing accessories, in jewellery and as inlay on furniture. Its more practical uses include being used for billiard balls, buttons, and a veneers on the top of piano keys.
The use and trade of elephant ivory have become controversial because they have contributed to Due to the decline in elephant populations because of the trade in ivory, the Asian elephant was placed on Appendix One of the Convention on International Trade in Endangered Species (CITES), in 1975, and in January 1990, the African elephant was similarly listed. Under Appendix One, international trade in Asian or African elephant ivory between member countries is forbidden. Unlike trade in elephant tusks, trade in mammoth tusks is legal.
Since the invention of plastics, there have been many attempts to create an artificial ivory
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