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).
Modification drawing for 3 1/2' & 7 1/4' gear dogs, part number G 77976.
| Identifier | ExFiles\Box 15\5\ Scan101 | |
| Date | 30th December 1914 | |
| MOD. TO 3 1/2" & 7 1/4" GEAR DOGS - G 77976. H.281 FOR 14 EX. TEN TEETH TO BE CUT BACK AS SHOWN (IN PAIRS) LEAVING FIVE EQUALLY SPACED WITH ORIGINAL 10° CHFR 1.178 10° Tsn 30/12/14 | ||