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Aviation History
1939
1939 - 0113.PDF
JANUARY 12, 1939. ADVERTISEMENTS. FLIGHT. 31 Thermometers for OIL temperatures —to latest A.M. Specification, LIST "A/6" NEGRETTI 18 ZAMBRA 38, Holborn Viaduct, London. Makers of the World's Best Instruments. MEDIUM OR MILD BOTH BLENDS ARE CORK-TIPPED or PLAIN IOfor6D 20 for UP TURN YOUR OLD OIL INTO NEW Install a Stream-Line Filter and change old dirty oil into clean "new" oil—every bit as good as it was before going into the engine. For, once clear an oil of abrasive particles and you restore its lubri cating value in its entirety. The savings in oil costs are tremendous, and you save wear and tear on the engine, for when you can use the same oil over and over again, it is economically possible to carry out frequent oil changes. Every day you delay installing a Stream- Line Filter you are wasting oil—wasting money ! • Write for details TO-DAY. GOOD OIL DOES NOT WEAR OUT. HELE-SHAW WORKS, INGATE PLACE, LONDON, S.W.8 Telephone: Macaulay ion fOSEMOST FOE RELIABILITY HI QUALITY, STRENGTH A3D LIGHTNESS : SIMPLICITY IS CONSTRUCTION .C.C45IF JJHABERSHON PHONE/069 Si SONS Ltd. C-STAB./829. HOIMES MILIS • ROTHERH AM
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