Mule or donkey carrying gas bottles in the medina (old city) of Fes, Morocco, Stock Photo, Picture And Rights Managed Image. Pic. UIG-971_11_MA636213B | agefotostock
With Gas Costs Rising, Farmers Take to Mules : NPR
Pokharanepalnovember 23 Mules Used Gas Tank Stock Photo 210381280 | Shutterstock
Kaski. 6th June, 2018. Mules carrying empty gas cylinders proceed towards Ghandruk village from Chhomrong village of Kaski district in Nepal, June 6, 2018. Credit: Sunil Sharma/Xinhua/Alamy Live News Stock Photo - Alamy
Two German soldiers and their mule wearing gas masks, 1916. (colorized by me) : r/Colorization