Blundell Harling Trueline Drawing Boards
Simple cross-wire parallel motion.
Graduated straightedge with cam break at both ends.
Straightedge undercut to provide an inking edge and can be tilted or raised for flexible use.
Moulded corner blocks attach the pulleys to the board and protect against damage.
Castellated strips for table edge support.
Flip leg acts as carrying handle.
Can be used flat or at a 15° angle.