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 listing file numbers with their subjects and corresponding date ranges.
| Identifier | ExFiles\Box 177\2\ img177 | |
| Date | 1st March 1932 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 Components | Oct. 1931 | May . 1933 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. 1925 | 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 | ||