Device appropriate for the identification of animals

Claim 1

A two-part device for attachment to the pierced ear of an animal for identification purposes, comprising a first flat generally elliptical plastic deformable plate member having a centrally disposed generally circular opening therein, said opening also including a pair of oppositely disposed radially outwardly extending grooves, and a second flat generally Elliptical plastic plate member substantially similar to the first plate member and including a centrally disposed insertion dowel projecting transversely from one side thereof, the extremity of said dowel having a generally spear-shaped projection terminating in a base having a flat surface extending outwardly from the dowel in a plane parallel with the plate member, the margin of said base being defined by two oppositely disposed ogive lines intersecting at two points equidistantly spaced from opposite sides of the dowel, the distance between said two points being approximately equal to the length of the opening defined by the grooves in the first plate member.