Glass bottle with cork stopper full of Tabloid brand compressed 'Astringent Mixture' tablets (aromatic confection chalk, cardamoms, catechu, opium, cinnamon and ammonium bicarbonate). 74 mm x 20 mm diameter, 16g. Produced by Burroughs Wellcome and Co., London, 1885-1920. Glass bottle of Tabloid Astringent Mixture 1885-1920
Natural dyes from research carried out by Leeds University Colour Chemistry department, c.1920s. Catechu dye sample in glass jar. Catechu dye sample 1920 circa