My wife and I were just at the Chicago Science and Technology Museum last week and I saw a number of items that were the same as the ones in my private collection of old electronics and electrical junk.
People look at you weird sometimes when you say things like, 'I have that exact same thing laying on the floor in my shop!', when in a museum.
Antique glass batteries, old engine magnetos, an industrial sized vacuum tube, early transistors, and some early style electricians tools if you are wondering.
Oh ya almost forgot the antique chainsaw, engines, and 32 volt generators.