WWII 1942 US Original Foster Grant Snow Or Aviator GOGGLES Rare Amazing Set

In good lightly used condition. Mark on one lense may be an intentional F engraving. The condition surprises me everything I look at them. Green tint. Unsure of age. My best guess is WWII but easily could be earlier. People call these aviation or snow goggles. Unsure of the exact historical use. See photos for size and condition