For centuries, Chinese judges had routinely worn smoke-colored quartz lenses to conceal their eye expressions in court. However, these
Kaynak: Timeline of United States inventions (1890–1945)

Small workshops are prevalent in Huaquechula , where they specialize items made with black and smoke-colored glass. Commerce and
Kaynak: Puebla

Some drivers purchase clear, smoke-colored or tinted covers that go over the license plate to prevent electronic equipment from scanning
Kaynak: Vehicle registration plate