The mark consists of a first vertically-aligned rectangle enclosing a second vertically-aligned rectangle partially covered by a wavy line about the interior perimeter of the second rectangle, the wavy line enclosing, from top to bottom: two identical images, the first positioned at the top end of the first rectangle and the second being a fully inverted image of the first and positioned at the bottom end of the first rectangle, each of the two identical images having a series of seven small, vertically-aligned, equally-spaced, and parallel rectangles, each having a small equilateral triangle at its top surface and four curved lines, two of which extending from each lateral side of the small rectangle proximal to its top surface, the curved lines intersecting with those extending from the one or more adjacent small rectangles, with one equilateral triangle interposed between the bottom end of each of the small rectangles; beneath the small rectangles is a third vertically-aligned rectangle enclosing two identical images each of a house placed on a contoured surface and having a flower stalk on each side of the house and reaching to the same height as the house, with the two identical house images separated by an image of a flowered plant centrally positioned within a curved dome.