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).
Index sheet (Sheet 2) listing file numbers and date ranges for various electrical components.
| Identifier | ExFiles\Box 177\1\ img028 | |
| Date | 1st October 1951 guessed | |
| Sheet 2. FILE NO. CONTENTS. SUBJECT FROM TO X.6051 ✓ Speedometer and Rev Counter Jan. 1930 Dec. 1934 X.6065 ✓ Dynamo Sept. 1924 Dec. 1929 X.6065/2 ✓ Speedometer - General Jan. 1937 Aug. 1941 X.6066 ✓ Horns March 1912 May 1936 X.6066/1 ✓ Dynamos Aug. 1925 Dec. 1930 X.6087 ✓ Tests - Production Electrical Oct. 1931 May. 1933 Components X.6088 ✓ Dynamo Oct. 1931 May 1933 X.6092/1 ✓ Dynamo & Voltage Regulator nov. 1926 May 1935 X.6094 ✓ Valve - Rectifying for H.T. Jan. 1931 May 1932 X.6099 ✓ Dynamo and Electrical Equipment Jan. 1931 Dec. 1934 X.6103 ✓ Electrical Equipment April 1930 Dec. 1936 X.6106 ✓ Electrical Equipment Dec. 1923 Oct. 1933 X.6110 ✓ Insulating - General March 1930 Oct. 1936 X.6112/1 ✓ Gauges Oct. 1912 May 1929 X.6112/2 ✓ Gauges Jan. 1930 Nov. 1933 | ||