Is this Wayne Gretzky 1988 stick worth $300,000?

This stick has a bit of a complicated history.

The non-complicated part is it was used by Wayne Gretzky in Game 5 of the 1988 Stanley Cup, in which the Oilers clinched the title over the Bruins.

The complicated part is the same stick was sold at the same auction house last year, Sotheby's. What does that mean? Darren Rovell and Will Stern break it down.

You can read their full auction preview here.