What's the oldest thing in your house that still in constant, everyday use?

My kitchen table is solid yellow Formica topped chrome and the matching chairs are padded vinyl and chrome. I knew the exact date from a magazine advert, but I think about 1948. The previous owner had glass cut for the top, and it’s still in constant, everyday use. Amazing, thinking of the fiber-board products today!

What’s the oldest thing in your house still in constant use?

I tried to buy a Daisey wall mounted can opener from the 30’s-40’s yesterday and failed. I remember having that as a kid, with an ice crusher attachment.