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Glass cast of radiotherapy mask, part of Silent Stories artwork, made by Katharine Dowson c.2010

c.2010

Glass cast of radiotherapy mask, part of Silent Stories artwork, made by Katharine Dowson c.2010

c.2010

Casein plastic buttons

1913-1928

Casein plastic buttons

1913-1928

Samples book

1951-1961

Casein plastic buttons

1913-1928

Casein plastic buttons

1913-1928

Samples of casein plastic, c. 1920-1960.

1920-1960

Samples of casein plastic

1920-1960

Casein plastic buttons

1913-1928

Casein plastic buttons

1913-1928

Casein plastic buttons

1913-1928

Samples of casein plastic, c. 1920-1960.

1920-1960

Display card of samples of casein plastic

1931-1940

Casein samples produced under the trade name Lactoid

1951-1960
Samples book, one of two, of coloured casein bound in grey and plastic and marked with the Erinoid logo, c. 1960's. 4 page book.

Samples book

1951-1961
Selection of two samples books of coloured casein bound in grey and plastic and marked with the Erinoid logo, c. 1960's

Sample cards of coloured casein plastic buttons, c. 1950s.

1951-1961
pH meter, with electrodes, by Doran Instrument Co. Ltd., Stroud

pH meter

1950-1980
Polished casein buttons coloured cream in 3 styles: a) round, 4 holes, b) round, 2 holes, c) hemispherical, 4 holes

Casein plastic buttons

1913-1928
PH meter by Doran Instrument Co. Ltd., Stroud, Gloucester [Patent No. 593920, Serial No 3533], with notes and manual

PH meter by Doran Instrument Co. Ltd.

1940-1960
3 (three) sample cards of coloured casein bound in green and marked with the Erinoid Logo, c. 1950's

Sample books of coloured casein plastic buttons

1951-1960
pH meter, in mahogany case BY Doran Instrument Co. Ltd., Stroud, Glos., England, 1957. British patent no.593920

pH meter

1957