Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 162,259 pages of information and 244,500 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
208. MALLOCH, P., 18 Market Street, Edinburgh — Inventor and Producer.
Mechanical indicator for teaching geography, designed and manufactured by the exhibitor.
The means used are studs placed in their proper position, as on the map, which on being pressed down raise others at the index, and thus indicate the correctness of the places wanted.
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