In homes today, it is used quite a lot of galvanic power sources (batteries). Even the most “long-playing”-of them at the end of life just thrown away, though their metal body remains as entire as at first. If you take it apart, it would make a great ring to strengthen the wooden handles of files, needle files, awls, cutters for turning operations on a tree.
A. PISKUNOV, S. L o V C s. Moscow region
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