“After nine years, John was amazed when his friend Knut Øyjorda found his gun in the mountains: The wooden stock was bleached out and brittle, the muzzle was rusted and unusable. Only the scope was still like new. The coating withstood the weather, the cold and heat could not harm the optics. The Customer Service in Wetzlar checked the scope in detail and concluded: ZEISS products are indestructible.”
http://www.zeiss.com/sports-optics/en_de/hunting/experience/hunting-stories/lost-and-found–zeiss-riflescope-in-norway.html

Color me impressed if this scope was really found in that condition after 9 years in the elements.

-GM