This is a link to an old British Pathe short film of the workshops of the Silver Galleries at Charterhouse Street, London taken in 1959.
You will need 'Adobe Flash 10' to view this short film, this one does have sound.
If you do not have this application just follow the prompts to download.
http://www.britishpathe.com/record.php?id=228
Watch out for the guy working the fly press, I bet he lost his teeth on the first day of his apprenticeship.
Trev.
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