Tangible Media: Removable Storage of Image, Sound, Motion and Data
Tangible Media: Removable Storage of Image, Sound, Motion and Data
Tangible Media: Removable Storage of Image, Sound, Motion and Data
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Primus Diagram Plate

Date:

c. 1910s

Material:

Ink on glass

Dimensions:

¼ x 3¼ in. (8.2 x 8.2 cm)

Company:

W. Butcher & Sons, Ltd.

Location:

London, England

Used to create diagrams on custom slides for use in the classroom. The diagram here is not original, but added for illustrative purposes.