A Sheaffer Balance fountain pen that I bought and restored, I believe it's from somewhere around 1934. A few fountain pens that are certainly old but of unknown date as well.

Runner up would be my house built in the early 50's.

A camcorder from 2002. Imagine 00's skateboarding clips!

A porcelain doll that's likely over 100 years old. It's most certainly haunted.

I also have some old vintage copies of Oedipus Rex from like the 1800s?

Probaly some Ottoman coins since my father runs buisness selling old money.

The oldest man-made thing I have is a carved stone hammerhead.

Silver plated dining utensil set circa WWII. Nothing significant about it, just from the time.

Petrified fern (unless I gave it to my niece. Hrm, I don't remember)

Pretty sure it's my testicle.

I've got a fossil of a shell, no idea how old. And a penny from 1913 that was almost 100 years old when I found it and has since gotten older.

some curtains

As far as I can guess, stones of shungite estimated to be about two billion years old.

Muh dick.