BrookeUSA - The Veterinary Corps Poison Gas - World War I Centennial
The Museum of English Rural Life on Twitter: "Sure you've heard of horse gas masks, but have you also heard of gas rugs? This horse is being fitted with both by @RoyalVetCollege
Teaching History with 100 Objects - A gas mask for a horse
Gas masks for horses - Background - Utrecht University
Humanity Is Riding Delusion to Extinction - Truthdig