The mule litter ambulance used at the battle of Mt. Dajo in the Philippines / by William N. Armiger (late of the sixth… https://www.rawpixel.com/image/14018538/image-paper-cartoon-personFree Image from public domain licenseThe mule litter ambulance used at the battle of Mt. Dajo in the Philippines / by William N. Armiger (late of the sixth… https://www.rawpixel.com/image/14001191/image-background-paper-horseFree Image from public domain license