W. Britain brand toy soldiers from the Robin Bannerman Collection. These guys were obviously played with. To see more, go to the Categories section on the blog's right column and click "Toy Soldiers."
More William Britains toy soldiers wearing masks. Below is a photo of Vickers machine gun crew wearing masks in WW1. My great uncle, Lt. John Curry of the 28th Infantry, was gassed in the War. He eventually returned to duty where he was killed in action in the Battle of Cantigny. Click any image to enlarge.