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Title: one of ten samples of ruby glass showing stages in the devel [Go to resource]
Description: one of ten samples of ruby glass showing stages in the development of the colour from near white ("unstruck") to dense colour ("overstruck") (1980) License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1984-1471/4 Go to resource More Like this...
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