For your consideration are Inuit Native Canadian/American snow goggles. Little is known about these early twentieth-century goggles, though the research suggests that they are most likely from the Caribou Inuit in Nunavut. Snow goggles were designed to reduce the amount of sunlight reflecting off the snow, preventing snow blindness when outdoors. Snow blindness is essentially sunburn of the eyes, and vision can be affected for a few days if precautions are not taken. Many Inuit groups made snow goggles to combat this issue, sometimes out of bone, ivory, or, like the ones shown, wood. Imagine travelling across the snow-covered tundra on a bright day without sunglasses, and you can see why snow goggles were invented. The small slits reduce the field of vision and the amount of ultraviolet radiation that reaches the eyes. The goggles are in very good condition, driftwood (especially spruce) or solid pine with woven sinew cord for the head strap, interior of eye slits are blackened; historically soot was sometimes applied to the inside to help cut down on glare. The sinew cord is frayed in places, otherwise the goggles are in excellent condition. Measures 5.25"L x 1"W x .5"D approximately