Скачать
'The Hallmarking of Silver and Gold' by Dr Jim Andrew
Автор: Newcomen Society
Загружено: 2025-12-24
Просмотров: 10
Описание:
The UK’s consumer protection started some seven centuries ago with the marking of gold and silver products to show purity, date tested and the maker. The method of establishing the purity of silver products evolved over many years with a need for both accuracy and the time taken to test items submitted for assaying, particularly in busy assay offices.
Jim Andrew will explain the system and how to access the details of date and maker, with examples from the last two centuries.
About the Speaker
Dr Jim Andrew is a former museum manager at Birmingham Science Museum, and is currently Chairman of Newcomen Midlands.
Доступные форматы для скачивания:
Скачать видео mp4
-
Информация по загрузке:
