Did you see any sign that "used shells must be tossed in the garbage bin"?
Here a some close to where I live at the moment;
http://no.wikipedia.org/wiki/Bilde:A...g-fortress.jpg
This is one of the three German 280mm canons on Oscarsborg fortress (protecting the sea entrance to our capital Oslo). It's ironic that when the Germans first attack on Norway 9th of April, their attack was responded by these german made canons. The large warship Bl�¼cher where sunken in the battle and is still down there leaking oil.
http://www.flekkeroy.no/kanon411.jpg
This is the only 380mm "Krupp" canon in the world, build by the Germans and left here for us to play with.