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 of a Balance Restriction component for a Bentley.
| Identifier | ExFiles\Box 85\4\ scan0032 | |
| Date | 24th May 1933 | |
| V.1553. .050 SWEAT .375 RAD. 2.400 CRS ROLLS-ROYCE, LTD. PRINT ROOM 24 MAY 1933 DERBY. 1.495 DIA 1.00 DIA .500 DIA 1.250 2.000 2.200 BALANCE RESTRICTION. BENTLEY MAT: B. 1. OFF. | ||