2013-05-142013-05-141930shttp://hdl.handle.net/10605/37166Negative of seven men on tractors plowing a large field taken circa 1930s. The negative was labeled "Mason farms - plowing."1 negative : b&w : 5 x 7 in.The images in this collection are for study purposes, teaching, classroom projection and research only. To use these digital files in any form, an attribution of "Courtesy of the Southwest Collection/Special Collections Library" must accompany the image.Tractors.Agriculture.imageSouthwest Collection/Special Collections Library