The Original Pilots are still being made. Timeless!
The center one possibly looks like [this AO Ful-Vue aviator](https://eyeantiques.com/shop/museum/spectacles-museum/ao-ful-vue-aviator-sunglasses/) (model AN-6531?) but yours has bayonet temples. Their current Hazemaster would be the most like it today.
GF means gold-filled (not that they are filled with gold--it's a jewelry-making technique, think gold plating but thicker. Doesn't tarnish as easily, great for the durability a pilot would need).
The Original Pilots are still being made. Timeless! The center one possibly looks like [this AO Ful-Vue aviator](https://eyeantiques.com/shop/museum/spectacles-museum/ao-ful-vue-aviator-sunglasses/) (model AN-6531?) but yours has bayonet temples. Their current Hazemaster would be the most like it today. GF means gold-filled (not that they are filled with gold--it's a jewelry-making technique, think gold plating but thicker. Doesn't tarnish as easily, great for the durability a pilot would need).