Vintage 14" Industrial Salvage Barn Light Shade in worn green enamel, lamp

...lighting project A wonderfully vintage metal enamel lamp shade, salvaged from a barn or factory. Perfect for Industrial / Fall Out or apocalyptic vintage inspired lighting projects. This shade is in a simple shape, fairly flat and a forest green enamel upper, white enamel inner. It has 2 neatly drilled little holes in the sides, with LOTS of rust and loss of enamel around the holes. The inside of the shade with a few dings, loss of enamel. (see images) Size: 14" diameter, ca 3.5" high. The top opening is just over 1-3/4 inches in diameter. The shade has a good weight to it, estimated date is 1950s.