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).
Blueprint detailing modifications to a silencer and expansion box pipe.
| Identifier | ExFiles\Box 169\3\ img026 | |
| Date | 30th January 1933 | |
| X10368 TO SUIT 1.750 DIA. PIPE ROLLS-ROYCE, LTD. PRINT ROOM JAN 30 1933 DERBY, CH END E10367 BLANK E10367 DRILLED & CENTRE FILLED IN 1.750 DIA PIPE E10367 DRILLED EXPANSION BOX RRSCH. 293/6 (MOD. TO H5911) SILENCER OTHERWISE TO RRSCH. 213 X10368 | ||