Почему так много пробок на этих тракторах?? 1-я часть фильма Керосин и др. горючие материалы для ДВС

Фильм рассказывает о ранних тракторах, которые оснащались многотопливными двигателями и могли работать на бензине или керосине, но также на лигроине, скипидаре, бензоле, спирте или еще на чем-то другом подходящем из всего многообразия горючих материалов. Авторский текст. Для иллюстрации использовано на принципах добросовестного использования Кадры из фильма NEW FORD TRACTOR Creator(s): Ford Motor Company. National Archives Identifier: 90969. Access Restriction(s):Unrestricted Use Restriction(s):Restricted - Possibly. Specific Use Restriction: Copyright Note: All rights were conveyed to the U.S. Government on Nov. 28, 1962. However, proprietary rights or existing copyright in footage obtained from other sources by Ford Motor Company may exist. MOTIVE POWER ON THE FARM, THE FORDSON TRACTOR. Creator(s): Ford Motor Company. (Most Recent) Access Restriction(s):Unrestricted Use Restriction(s):Restricted - Possibly Specific Use Restriction: Copyright Note: All rights were conveyed to the U.S. Government on Nov. 28, 1962. However, proprietary rights or existing copyright in footage obtained from other sources by Ford Motor Company may exist. FARM PROGRESS [FORDSON ADVERTISEMENT] [PART I] Creator(s): Ford Motor Company. (Most Recent) от National Archives Identifier
Access Restriction(s):Unrestricted Use Restriction(s):Restricted - Possibly Specific Use Restriction: Copyright Note: All rights were conveyed to the U.S. Government on Nov. 28, 1962. However, proprietary rights or existing copyright in footage obtained from other sources by Ford Motor Company may exist. Цель использования: Показать работу тракторов. Заменяемость: Нет. Фото: Harry Ricardo, Author MarketingRicardo, CC BY-SA 3.0,
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