From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Promotional leaflet for the Visco-Meter, a device for testing oil viscosity.
| Identifier | ExFiles\Box 145\3\ scan0193 | |
| Date | 4th October 1938 guessed | |
| THE VISCO METER CORPORATION 315 GROTE STREET BUFFALO, N. Y. Sole Agents BRITISH AUTOMOTIVE AND CHEMICAL INDUSTRIES LTD., 44, PACKINGTON ROAD, ACTON, LONDON, W.3. [Gauge Text]: LOW NORMAL HIGH OIL VISCOSITY VISCO-METER CORP. BUFFALO, N.Y., U.S.A. PATENT NO. RE17841 [Handwritten Signature]: Leila A PRACTICAL TEST FOR VISCOSITY Printed in U.S.A.—110 | ||