DescriptionAllis-Chalmers 6-12 tractor in Adams 1920.png
English: An illustration from an instructional overview on the Allis-Chalmers 6-12 tractor, contributed to Adams's textbook by the builders of the tractor, Allis-Chalmers , 1920.
Date
Source
Adams' Common Sense Instruction On Gas Tractor Operation: A Book For Tractor Operators Who Desire To Know The Most Efficient Methods Of Maintaining A Tractor At Its Highest Working Power. With Contributions From Many Of The Leading Tractor And Accessory Manufacturers Of The United States[1], Minneapolis, Minnesota, USA: Jensen Printing Company, 1920
Author
Harry W. Adams and contributors
Licensing
Public domainPublic domainfalsefalse
This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.
This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.
Captions
Add a one-line explanation of what this file represents