How fun! I’d never thought about it before.
Some old letters from the Civil war I suppose. Or my grandparents coffee mill from about 1890.
I just remembered I have a ring of brass jailer’s type keys I bought off Ebay supposedly dated around early 1900s.
There were bought as a prop and cheap too.
Besides some rocks, I also have some family letters from the Civil War. The is one happy one asking for my great...grandmother’s hand in marriage (yes, from a human male). The others are sad talking about who died and how their homes were ransacked by the d@mned Yankees.