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Dye Sample; Alizarin

Industrial Chemistry

Dye Sample; Indigo

Scientific Instruments & Research

Dye Sample; Iso-Purpurin

Scientific Instruments & Research

dye sample

Industrial Chemistry

c.1890

dye sample

Industrial Chemistry

c.1890

Dye Sample; Indigo

Scientific Instruments & Research

1840s-1900

Dye Sample; Purpurin (pure)

Scientific Instruments & Research

dye sample

Industrial Chemistry

c.1890
Box of "Velvotint" powder colours for tinting photographic prints by J. Barnard & Son London. Outfit no.217 containing 12 colours 23 stamps, handbook, advert, brush, all in polished mahogany box c1904

Box of 'Velvotint' powder colours

Photographic Technology

1900-1909