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).
Design specifications for two complete windscreen models from Hemming Bros.
| Identifier | ExFiles\Box 23\3\ Scan042 | |
| Date | 31th August 1920 guessed | |
| HEMMING BROS. WIND SCREENS COMPLETE Nº 1597 TOP SWING FRAME & BOTTOM SWING FRAME WITH EXPANDING INSIDE LOCKING ARRANGEMENT. Hood Attachment Nº 1595 TOP SWING FRAME FIXED BOTTOM PANEL WITH EXPANDING INSIDE . . . LOCKING ARRANGEMENT | ||