FIG. 1 is a top/side isometric view of a block of my new design, according to one embodiment;
FIG. 2 is a top plan view of FIG. 1;
FIG. 3 is a bottom plan view of FIG. 1;
FIG. 4 is a side elevational view of FIG. 1, the other sides being identical to that shown; and,
FIG. 5 is a side elevational view of the embodiment of FIG. 1, in cross-section, taken along line “5—5 ” of FIG. 2.