Thoughts on this?

[Renaebri]

Bottlecap for scale. All I know is it's not iron, it's broken and has some white corrosion. Maybe aluminum or could it be pewter? I'm not quite familiar with pewter.


I've also got these two pieces of copper that go together, not sure what they go to?


Thanks

 

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[A2coins]

I would guess a water outlet for an old car but theres no opening on the bottom. I am a bad guesser lol

 

[Joe-Dirt]

The first one looks like a riveted button, a huge one, maybe through a piece of leather? And maybe a chunk of a lantern or old gas lamp for the other? I dunno

 

[DCMatt]

Any threads on item 1?

Item 2 is part of an oil lamp.

 

[Hawks88]

I will guess an old car part. Maybe from the radiator. Looks like a hose may have gone over the neck end and clamped.