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 Monroe Air Cleaner for an Essex Terraplane '8'.
| Identifier | ExFiles\Box 21\6\ Scan104 | |
| Date | 25th September 1933 guessed | |
| ESSEX TERRAPLANE '8' MONROE AIR CLEANER 12" 2.1" DIA 7.7" 2.5" .85" .8" 2.3" 45° OUTSIDE DIA 6" COPPER SHAVINGS WIRE GAUZE 2" 7 RINGS OF CORRUGATED CARDBOARD WEIGHT OF COMPLETE SILENCER 3 LBS. 10 OZS. SILENCER MADE IN M/S 23 GAUGE. NB THERE ARE NO HOLES IN THE CENTRE TUBE. | ||