Soldier installing weather vane

Department of National Defence Collection
Library and Archives Canada, PA-001699
A novel vane made by a Canadian. A glance at the vane shows the troops if the gas alert is on or off.
September 1917
Department of National Defence Collection
Library and Archives Canada, PA-001699
A novel vane made by a Canadian. A glance at the vane shows the troops if the gas alert is on or off.
September 1917