Graph plotting Make Ratio against Breakers Gap for a Bosch Distributor.
| Identifier | ExFiles\Box 61b\4\ scan0171 | |
| Date | 20th November 1931 guessed | |
| X6128 BOSCH DISTRIBUTOR MAKE RATIO 1.0 .9 .8 .7 .6 .5 BREAKERS GAP .001" .006 .008 .010 .012 .014 .016 .018 .020 | ||
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).