Patent attributes
A writing instrument incorporating a plurality of knuckles arranged in a longitudinal series; a tube member and scribing pen combination extending through the knuckles wherein the scribing pen is mounted within the tube member and has a longitudinal scribing end; and incorporating first and second leaves, each leaf among the first and second leaves having proximal and distal ends, the first and second leaves being connected operatively to the knuckles for movement between closed and opened positions, the distal ends being adjacent each other upon movements of the first ad second leaves to their closed positions, the distal ends being displacing circumferentially from each other upon movements of the first and second leaves toward their opened positions.