✅ SOLVED Though I'd found my first large cent, turned out to be a copper what's it...

[rc2125]

Field find, mid 1800's home property, copper... " Z 18 1/2 " stamped up top

 

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Agony and Death on a Gold Rush Steamer: The Disastrous Sinking of the Side-Wheeler Yankee Blade - Grab it through Amazon!

[nhbenz]

Butterfly flap from a carburetor. This one is from a Model A, Zenith carb.: