When we bought our house, it came with original photos of the interior, a plan book from the 1956 Parade of Homes in which our house appeared, and these keys. The keys have the logo of the builder, Creekmore Construction, on them. They’ve never actually been cut, they seem to have been made for presentation rather than use. It’s pretty cool that the previous owners still had them and passed them down over the years. We’re the 3rd owners of our house, which was built in 1955.