Belt buckle for storing a spare key for an automobile

A belt buckle for storing a spare key for an automobile comprising a plate having a front side and a rear side, said buckle having a fitting to accommodate a belt adjacent to the rear side of said plate, said rear side of said plate having a diagonal groove which extends into said plate from a rear surface of said plate to a prescribed depth into said plate, said diagonal groove being configured in general conformance with the size and shape of said spare key, so that said key, when inserted into said groove, does not protrude beyond edges of said plate, and a plurality of retention lugs arranged along sides of said groove, said retention lugs holding said key in place in said groove.