My latest buy...absolutely mint pair of WW2 type A-2 release switches in the original box and bag with instruction manual as well.
Used for boobytrapping anything you dont want removed,underside of a mine,inside desk drawer(back removed of course...),under crates or boxes or even held neutral by a truck wheel etc etc
Hard to find in any condition and never seen ONE in good condition let alone a set.Click image for larger version. 

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