Henry Chapman Mercer Pottery

I have this piece of pottery that I am certain was made by Henry Chapman Mercer.

The design on my piece matches what is on this link: http://www.mfa.org/collections/object/tile-397910. It is exactly how they describe, "embossed tiles with a flowerpot in a central box with five off-shooting blossoms. Medieval text around all four edges. Maltese cross in top left corner. "X" in top right and bottom corners." Except my piece is not a tile, it is an open ceramic box of some sort. It was made from the red clay, has beige and blue colors, with a glossy finish.

Fair