Throw Away The Key

Could this be what protects my family's hidden treasure?

Or is it merely a mysterious key my mother had kept and eventually mailed to me on December 23rd of 1997 taped to a single blank piece of torn-out white notebook paper with no attached explanation, leads, clues or a single solitary word as to what it could be used to open...or in fact, whom it might be keeping locked away...?

SANTA????