An e-mail today drew my attention to the fact that World War II aircraft bomb sights are available on eBay – something of which I hadn’t been aware. For example, here’s an example of the famous Norden bomb sight:
(Click either image to be taken to its eBay auction page.)
I’m amazed to discover that these technological treasures are still so freely available. I can’t afford one, but at least I can be glad for those who can!