A photo of Elon Musk having a drink with Jennifer Gwynne in 1995 is one of several mementos of the tech billionaire's college relationship up for auction.
CNN  — 

Holding onto an ex’s stuff may prove profitable later on, at least if your ex turns out to be the wealthiest man in the world.

The former girlfriend of tech entrepreneur Elon Musk is auctioning off a cache of photos and Musk memorabilia from her relationship with the billionaire. Jennifer Gwynne, Musk’s college girlfriend, is selling the mementos through Boston-based RR Auction.

Gwynne and Musk started dating in 1994 when they both worked as resident advisers in a university dorm, according to a news release RR Auction shared with CNN. Soon after graduating from the University of Pennsylvania, Musk started in a doctoral program at Stanford, but dropped out to launch his first startup, Zip2.

The lot includes 18 candid photos of the entrepreneur as a baby-faced economics student a