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Artisto Litmus Cartridges

Artisto Litmus Cartridges

Tin of 'Congo-red' litmus paper, in ribbon-form, sufficient for 100 tests. Registered number: 69419.

Tin of Congo-Red litmus paper

Neutral litmus paper, from the portable laboratory owned by Dr. H.G Butterfield, by Johnson and Sons, Hendon, London, 1930-1940

Neutral litmus paper

1930-1940
Red litmus paper, from the portable laboratory owned by Dr. H.G Butterfield, unsigned, 1930-1940

Red litmus paper

1930-1940
Small rectangular book of pink litmus paper, with blue and white cover

Small rectangular book of pink litmus paper

1850-1900
Book of pink litmus paper. Part of Statham's student chemical laboratory.

Pink litmus paper

1860-1900
Book of yellow litmus paper. Part of Statham's student chemical laboratory.

Yellow litmus paper

1860-1900
Pad of litmus paper and 3 small metal scoops wrapped in paper, part of diagnosis kit owned by Dr. Philip Ellman, English, 1930-1960.

Pad of litmus paper and 3 small metal scoops wrapped in paper

1930-1960
Two booklets of litmus paper

Two booklets of litmus paper