Bad Breath Offers a Rare Payoff in Listerine-Royalty Stake Sale

  • Makers of mouthwash have been paying royalties for 140 years
  • Auction offers a slice of American history and perpetual cash
Ads for Listerine from the 1920s.

Source: The Indianapolis Times/Library of Congress

Lock
This article is for subscribers only.

A rare item has hit the auction block: an investment guaranteed to pay as long as people fret over bad breath.

Bids are being taken through Tuesday on a share of royalties backed by Listerine mouthwash sales. They stem from contracts signed 140 years ago by its inventor and still cited in business law classes that require the maker -- currently Johnson & Johnson -- to pay shareholders in perpetuity.