Rogers Calypso stainless black accent teaspoon

This piece of stainless flatware was made by Rogers International Silver and is marked "Wm.Rogers Mfg.Co., Custom Stainless, IS" on the back. I believe this pattern is called Calypso but I included a close up photo of the end for positive identification. The teaspoon is 6 1/4" long. This is a gently used piece with lots of shine and normal household wear but no bends, twists or dents.