I was curious about this green thing... James tells me that it is a "Bugaway" Bug Deflector
For a full car photo of this 1941 Chevrolet Special Deluxe: https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhmK2zl6dYUXr8gIzzlCEnVmDCMWmvQsKSpHNQfwjPU-Y8oa8BERkbjs7RXFzjUTQM4KrFmRrsTckGMa3ienXHdQx94cap7Po1bIFzuaWnnLZOi1iqXcoFyEkS0tgtfKxA6TR20-LNX8DGe/s1600-h/DSCN4639.jpg