A complicated group of lines in the right margin. Two vertical lines go from top to the bottom. The inner of the pair is clearly a 'dotted ARC' while the outer line is quite faint and appears to be both dotted and straight.The central right margin guide dot is also complicated. It seems to be composed of three vertical portions. The top portion is bisected by a linear horizontal line while large, bottom portion seems to show a faint, horizontal ARC.