A method and apparatus for applying aligned decorative tape patterns to opposite sides of a glass sheet. The glass sheet is positioned such that the first side of the glass sheet is accessible to a tape application head. A first tape pattern is automatically applied to the first side of the glass sheet with the tape application head by referencing a location and orientation of a first corner of the sheet. The sheet of glass is then turned over such that the second side is accessible to the tape application head. A second tape pattern is automatically applied to the second side of the glass sheet with the tape application head by referencing the location and orientation of the first corner. The first and second tape patterns are precisely aligned as a result of referencing the same corner of the glass sheet.