A 10 lettered signboard found in the western chamber of North Gate of Castle, (c. 2500-1900 BC). There are ten symbols in the panel. One symbol has been repeated four times. These symbols are indicative of use in Stage IV of Harappan Culture. These inscriptions are located near the gate and are often referred to as "Sign Board". The symbols have a special significance as visitors would see them before or after they entered Dholavira.