WWII German lid with a post-war liner. An oddly obvious attempt at subterfuge at such a prestigious show (and dig that crazy chinstrap bail).
The organizers of this show strive for authenticity of objects and they seem to do a pretty good job of policing their dealers. About the only thing bogus at this show were the prices. Generally unrealistic asking prices seemed to be the order of the day, flying in the face of not only the current economy but also the realities of ebay. Obviously this show's for the hoity-toity, not for the hoi-polloi such as I.