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Title: Box of filter paper made by W.&R. Balston Limited, labelled [Go to resource]
Description: Box of filter paper made by W.&R. Balston Limited, labelled as 'hardened, purified, "ashless",paper, 7cm diameter, grade NO.544. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: filter paper Temporal: c1970 Source: Science Museum Creator: W.&R. Balston Ltd. Identifier: 2001-513 Go to resource More Like this...
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