IT IS A GENUINE UNUSED SCOTT C3a, INVERTED CENTER, POSITION 76, THE BOTTOM RIGHT STAMP FROM THE ORIGINAL BLOCK OF FOUR BELONGING TO ETHEL B. McCOY AND STOLEN FROM HER EXHIBIT ON SEPT. 23, 1955. THE INVERT WITH PART O.G., A TINY THIN SPOT AT RIGHT, REPERFORATED AT TOP, AND ALSO REPERFORATED AT LEFT TO ELIMINATE THE VERTICAL GUIDE LINE APPEARING ON THE STAMP IN ITS ORIGINAL STATE.