Abstract: An apparatus for securing and drawing upon a piece of paper, includes a board having a drawing surface sized to receive the paper. The drawing surface is bounded along its perimeter by a border region. An array of border pieces is fastened securely to the border region, each border piece being aligned relative to the others to establish a precisely sized drawing surface area to accommodate the paper. Each border piece has a length shorter than that of the corresponding edge of the drawing surface.

Abstract: A paper abutted ruler is provided which can easily be moved on the surface of a surface plate and can simply and accurately be positioned in place. The paper abutted ruler is constructed such that magnet bases rotatably supported at their one ends to a bottom portion of a ruler body and having magnets affixed to lower surfaces of the magnet bases are disposed in the ruler body at opposite-side positions spaced in the ruler longitudinal direction, and the magnet bases are rotated in a direction to tilt upward in interlock with depression of an attraction release button disposed nearly at the center of the ruler body. By depressing the attraction release button to rotate the magnet bases in the direction to tilt upward, the magnet bases are held in a state forming a predetermined angle relative to the surface of the surface plate.