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).
Dimensional drawing for a revolution gauge casing.
| Identifier | ExFiles\Box 65\4\ scan0027 | |
| Date | 2nd November 1927 | |
| [ "DIMENSIONS OF REV. GAUGE CASING.—10 EX.", "3.875 DIA", "3.650 DIA", "1.700 DIA", "2.000 DIA", ".093", "1.275", "2.225", "2.725", "2/11/27" ], | ||