It?s tough...there are many in the former Eastern block countries who dig the ?Metal harvest? for a pittance, on the chance that they will find an item that a western collector might buy. What some find are explosive objects that have lain silently for, in some instances, a hundred years. Not all blinds are blind forever..some have deteriorated to such an extent that the explosives are now so unstable, that the slightest movement will detonate them. Always remember that these objects were designed to kill and the years do not change that harsh reality.