Bob Kolbe has been collecting antiques personally and professionally for more than 40 years.
"My wife made a decree not that long ago, saying that you will have an auction or I will have an estate sale," said Kolbe.
He's got oodles of jugs like this one used by railroad patrons on long treks across the country.
"And, if you wound up with one of these and the railroad detectives found out you'd be in deep dodo," said Kolbe.
So much South Dakota stuff, so many South Dakotan stories.
"It's always tough to part with it when you do it in mass. You have to get to the point where it's ok to left somebody else enjoy it also," said Kolbe.
Plus, he has his retirement fund to think about.
"Bob's got a real one of a kind collection with all of the South Dakota advertising. Collections like this pretty rarely come up," said auctioneer Ken Girard.
The collection should bring a big pay day.
"At $10 a piece with 400 items that's real money. If they brought $100 a piece I'd be as happy as a clam in mud," said Kolbe.
The auction begins Saturday morning at 10 at the Sioux Falls Convention Center. If you can't make it, you can follow along online here: http://www.girardauction.com/.