I always enjoy the older guns, makes the whole thing that bit more special.
Back in the UK I had an old Joseph Lang 12 bore.
Hammers, 30" damascus barrels, under lever lock up, made sometime between 1852 and 1886 based on the address on the rib. Some casual googling dates it around 1870 and it was likely made as a live pigeon shooting piece. Sadly the only pictures I had of it were on my old laptop, which died shortly after my arrival in the US...
Just like this one:
View attachment 622910
I bought it off the rack in a local shop specializing primarily in air rifles where it was placed as part of an estate sale. No paperwork, no case, no interest from the owner of the shop who just wanted it gone. Best GBP600 I ever spent.
I used it a couple times a year for walked up pheasant shoots. With light 2.5" BP loads it performed just as well at 150 years old as it did when it was new. I was quite sad to sell it when I moved to the states, but I'm sure it's still faithfully serving the latest in what I'm sure is a long line of owners to this day.