PURPOSE: To enable four faces on four sides to be used as display boards with a simple construction and enable the display boards to be removed and attached easily, in an indicator for bus stop having a fluorescent lamp within.

CONSTITUTION: This is an indicator where pole materials 10 are fixed between the bottom plate 4 and the top plate 99 fixed to a pole 3, and crosspieces 14 to support display boards 2 with grooves are fixed between the pole materials 10, and an armor pole material 12 is held between the bottom plate and the top plate outside the pole materials 10, and the armor pole material 12 is made freely mountable and removable by the vertical movement of a lock material 11 so that the display boards can be taken out or attached.