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Claim 1

A FACING TILE OF RECTANGULAR CONFIGURATION ADAPTED TO BE INSTALLED IN VERTICALLY AND HORIZONTALLY ORIENTED ROWS WITH A PLURALITY OF SIMILAR TILES TO FORM AN INTERLOCKED FACING CONSTRUCTION, SAID FACING TILE COMPRISING A HOLLOW SHELL LIKE MEMBER HAVING A TRANSVERSE WALL, SAID TRANSVERSE WALL HAVING SUBSTANTIALLY PARALLEL TOP AND BOTTOM EDGES AND A PAIR OF OPPOSITE SIDE EDGES, A PAIR OF REARWARDLY EXTENDING TOP AND BOTTOM WALLS INTEGRAL WITH SAID TRANSVERSE WALL AT THE SAID TOP AND BOTTOM EDGES AND EXTENDING SUBSTANTIALLY NORMAL TO SAID TRANSVERSE WALL, SAID TOP AND BOTTOM WALLS RESPECTIVELY EACH HAVING A FREE EDGE, SAID TRANSVERSE WALL INCLUDING PATTERN CARRYING PORTIONS AND PLANAR PORTIONS OF PREDETERMINED WIDTH DELINEATING SAID PATTERN CARRYING PORTIONS, SAID PLANAR PORTIONS CARRYING A MORTAR SIMULATING OUTER SURFACE, SAID TRANSVERSE WALL HAVING A TOP MARGINAL FLANGE COPLANAR WITH SAID TRANSVERSE WALL AND EXTENDING NORMAL TO SAID TOP WALL AND OUTWARD THEREFROM A PREDETERMINED DISTANCE, SAID TRANSVERSE WALL HAVING A PORTION OF THE PATTERN CARRYING PORTIONS THEREOF COEXTENSIVE WITH THE SAID BOTTOM WALL AND DEFINING AN OVERHANG EXTENDING NORMAL TO SAID BOTTOM WALL AND EXTENDING OUTWARD THEREFROM A PREDETERMINED DISTANCE, SAID TOP WALL HAVING A NAILING FLANGE MEMBER EXTENDING NORMAL TO SAID TOP WALL AND OUTWARD THEREFROM A DISTANCE GREATER THAN THE EXTEND OF SAID TOP MARGINAL FLANGE OUTWARD FROM SAID TOP WALL, SAID BOTTOM WALL HAVING A BOTTOM MARGINAL FLANGE EXTENDING NORMAL TO SAID BOTTOM WALL AT ITS FREE EDGE AND EXTENDING OUTWARD THEREFROM A PREDETERMINED DISTANCE, THE TOP AND BOTTOM MARGINAL FLANGES, THE NAILING FLANGE AND THE OVERHANG EACH RESPECTIVELY HAVING INNER AND OUTER SURFACES, THE INNER SURFACE OF THE TOP MARGINAL FLANGE, THE TOP SURFACE OF THE TOP WALL AND THE INNER SURFACE OF THE NAILING FLANGE DEFINING A FIRST CHANNEL, AND THE INNER SURFACE OF THE OVERHAND, THE BOTTOM WALL AND THE INNER SURFACE OF THE BOTTOM MARGINAL FLANGE DEFINING A SECOND CHANNEL, THE OUTER SURFACE OF THE TILE HAVING AN ADDITIONAL PLANAR MORTAR SIMULATING PORTION COEXTENSIVE WITH SAID TOP MARGINAL FLANGE AND HAVING A WIDTH MEASURED PERPENDICULAR FROM THE TERMINAL EDGE OF SAID TOP MARGINAL FLANGE GREATER THAN SAID PREDETERMINED WIDTH OF SAID PLANAR PORTIONS DELINEATING SAID PATTERN CARRYING PORTIONS, THE OUTER SURFACE OF THE TOP MARGINAL FLANGE, THE PLANAR PORTIONS OF THE TRANSVERSE WALL HAVING THE MORTAR SIMULATING OUTER SURFACE AND THE INNER SURFACE OF THE OVERHANG DEFINED BY A FIRST PLANE, THE INNER SURFACE OF THE NAILING FLANGE AND THE OUTER SURFACE OF THE BOTTOM MARGINAL FLANGE DEFINED BY A SECOND PLANE AND THE OUTER SURFACE OF THE NAILING FLANGE DEFINED BY A THIRD PLANE, A FIRST, SECOND AND THIRD PLANES BEING SUBSTANTIALLY PARALLEL ONE RELATIVE THE OTHER, THE SECOND AND THIRD PLANES BEING SPACED ONE FROM THE OTHER A DISTANCE EQUAL TO THE THICKNESS OF THE NAILING FLANGES, THE INNER SURFACES OF THE TOP AND BOTTOM MARGINAL FLANGES RESPECTIVELY BEING DEFINED BY A PAIR OF SUBSTANTIALLY PARALLEL PLANES, THE SAID PREDETERMINED DISTANCE AT WHICH THE BOTTOM MARGINAL FLANGE EXTENDS OUTWARDLY FROM THE BOTTOM WALL BEING NO GREATER THAN THE PREDETERMINED DISTANCE AT WHICH THE TOP MARGINAL FLANGE EXTENDS OUTWARDLY FROM SAID TOP WALL, THE PREDETERMINED DISTANCE THAT SAID OVERHAND EXTENDS OUTWARDLY FROM SAID BOTTOM WALL BEING EQUAL TO THE DIFFERENCE BETWEEN THE WIDTH OF SAID ADDITIONAL PLANAR MORTAR SIMULATING PORTION AND SAID PREDETERMINED WIDTH OF THE PLANAR PORTIONS WHICH DELINEATE SAID PATTERN CARRYING PORTIONS, WHEREBY IN INSTALLED CONDITION OF THE TILES, THE OVERHANG EXTENDS OVER THE OUTER SURFACE OF THE TOP MARGINAL FLANGE OF THE NEXT ADJACENT TILE TO DEFINE A STRIP HAVING A WIDTH SUBSTANTIALLY EQUAL TO THOSE PLANAR PORTIONS DELINEATING SAID PATTERN CARRYING PORTIONS OF THE TRANSVERSE WALL, ALBEIT SAID BOTTOM MARGINAL FLANGE BEING ENGAGEABLE WITHIN THE FIRST CHANNEL OF THE NEXT ADJACENT TILE AND THE TOP MARGINAL FLANGE OF THE NEXT ADJACENT TILE BEING ENGAGEABLE WITHIN THE SAID SECOND CHANNEL WHEREBY TO FORM AN INTERLOCK ARRANGEMENT BETWEEN SAID TILES IN INSTALLED CONDITION THEREOF TO DEFINE AUTOMATICALLY UPON ENGAGEMENT UNIFORM PLANAR PORTIONS BETWEEN PATTERN CARRYING PORTIONS OF THE TRANSVERSE WALLS OF SAID ADJACENT TILES.