The oldest thing I own would be my wife, she's 51. Other than that, it would have to be some mechanic tools, probably 40 years old.
I have an Edision Standard Phonograph patented in 1882. Got it from my grandfather. It plays the cylinder soup can records. It very rarely gets played. Last time it saw sunshine was when I took it to my sons second grade class to show as part of their unit on Thomas Edison.
A guy I worked with when I was just starting out at welding/fab shops retired and gave me damn near all of his tools, books, metrology equipment. It's all stuff from the late 70's all the way through 2003. He told me to drive my little pickup truck to work and then proceeded to just load all his shit into it the day before he retired. I had just 17 and this was the nicest thing anyone had ever done for me. I still have every god damn bit of this stuff. He didn't have a cell phone, and was moving to the south right away after retiring. I never talked to him again. I hope he's well.
I have a Colt SA made in the 1890s. Other than that, the land I live on. Been here as long as the earth has.
1803 half cent. I was 10 years old, helping my mom rake a customers yard. Saw what I thought was a quarter in the dirt. Sat it on a shelf for a couple months til I cleaned it off and saw what it was
A Winchester Model 1897 12 ga made in 1912 that my Dad traded a box of Hershey bars for in Japan right after WWII.
Somewhere in my boxes of crap I have a Culver Block that was part of the original Indianapolis Motor Speedway track surface. A buddy who is a photographer pulled it out of the backside of the banking one day during 500 practice and gave it to me because he already had one.
A 6 inch megalodon tooth I found diving. Concert tshirts to the 80s. 1800s coins Mustering reports and discharges for family going back to Civil War. One ancestor held high ground at Gettysburg with artillery against Picketts charge.
Not really certain but the two things that come to mind are a cavalry sword from 1847 and an old telegraph set, date unknown.
Not quite at the same level. But a few years ago, when I got my first house, one of my coworkers, a tooling engineer that just retired last year, gave me an older craftsman drill. I know the thing it is pretty old, the whole construction is metal. I actually never used it, but I am keeping for the memories, was super nice of him.
Table from the early 1800s. Bible from a relative that he carried with him during the civil war. He was from Maine.
This is the oldest I can think of off the bat. 1858 US one cent Getting that one out, I spotted this one. I really wish that inanimate objects could talk, because I really want to know the story about its travels before the day in ~2002 I found it on the floor of the lumber department in a Home Depot in Garland Texas. I bet that's a tale.