Set could be spoken for by family member. This or maybe person or persons running estate sale did a deal with someone locally who expressed interest.
Way to find things nowadays (if not always) has been to have connections. And people who do estate sales or otherwise deal with disposing of various items often are on many people's retainer list.
Keep in mind as one keeps repeating, not everyone shares our hobby. People see vintage appliances in good condition for what they are; something that can be put to good use. More so nowadays when so much bought new is rubbish. People are watching YT videos and picking up the scent.
Otherwise have often found people doing estate sales always keen to make money. Usually they don't have a clue about "old appliances" and just want to clear things out. So if you make a decent offer and are ready to close deal right there, usually items are yours for taking. You just have to be ready to strike while iron is hot, and not give people time to think about things. [this post was last edited: 5/14/2022-11:12]