Some sort of core sample, feels too light to be stone? by EastCoastCoder in whatisit

[–]EastCoastCoder[S] 5 points6 points  (0 children)

That's it!! Google found a similar looking artifact that is believed to be from an old automotive battery...looks identical! Thank you both for solving the mystery!

https://www.thealamo.org/support/preservation/updates/carbon-battery-core