FIG. 1 is a perspective view of a revetment block;

FIG. 2 is a top view of the revetment block of FIG. 1;

FIG. 3 is a side view of the revetment block of FIG. 1;

FIG. 4 is another side view of the revetment block of FIG. 1;

FIG. 5 is an end view of the revetment block of FIG. 1;

FIG. 6 is another end view of the revetment block of FIG. 1;

FIG. 7 is a bottom view of the revetment block of FIG. 1;

FIG. 8 is a perspective view of a revetment block;

FIG. 9 is a top view of the revetment block of FIG. 8;

FIG. 10 is a side view of the revetment block of FIG. 8;

FIG. 11 is another side view of the revetment block of FIG. 8;

FIG. 12 is an end view of the revetment block of FIG. 8;

FIG. 13 is another end view of the revetment block of FIG. 8; and,

FIG. 14 is a bottom view of the revetment block of FIG. 8.