My mom is in her early 60s. When she was young, she received a Barbie Kitchen Set as a gift. She has kept it through the years and brings it out on occasion.
It is so neat! There is nothing like it on the market even today, which makes it all that much more special as it was made 50+ years ago. There are four pieces - a refrigerator (that opens and has play food inside), an oven (with a door that opens, and a turkey on a turning spit), a dishwasher (with real water that runs through it), and a sink (also with real water that runs out the faucet).
While we visited over Christmas, she showed this set to my children for the first time. So fun to play with toys that Grandma played with those many years ago.