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Colour Standards For pH Measurements, by Charles Hearson & Co Ltd, London

preview image for Colour Standards For pH Measurements, by Charles Hearson & Co Ltd, London
Inventory Number: 15659
Object Type:
Place Created: London England United Kingdom Europe
Accession Number: 1966-291/3
Brief Description: Six Colorimetry Discs with ten different coloured apertures each, nine same sized apertures around the edge with one large one in the middle. These are stored in seven card cases, one being empty, which are labelled with the maker's mark "Chas, Hearson & co. Ltd. Microscopes and Accessories, 27, Mortimer Street, London, W.1".
Collection Group:
Material(s): Glass
Plastic(?)
Paper
Card
Dimensions:
Height Width Depth Diameter Unit
100 92 15 mm

There are no associated narratives.

Image with multimedia irn 28829

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