Farmer's wife on the cartway, oil painting. Original public domain image from Finnish National Gallery. Digitally enhanced… https://www.rawpixel.com/image/8689389/image-public-domain-green-canvasFree Image from public domain licenseFarmer's wife on the cartway (1900) oil painting by Sigfrid August Keinänen. https://www.rawpixel.com/image/8689086/image-public-domain-green-canvasFree Image from public domain licensePlanting Cotton in Strip-tilled Rows and into a Wheat Cover crop, Autauga County, Alabama, USA, May 10, 2017. https://www.rawpixel.com/image/6111895/photo-image-public-domain-green-natureFree Image from public domain licenseClaas 640 Arion tractor with Lely round baler, Location unknown, July 24, 2016. https://www.rawpixel.com/image/6113059/photo-image-public-domain-nature-summerFree Image from public domain licenseClaas 640 Arion tractor with Lely round baler, Location unknown, July 24, 2016. https://www.rawpixel.com/image/6113056/photo-image-public-domain-nature-summerFree Image from public domain license