I got 2 different types of EXIT signs made by Stanilight for parts (used), instead of buying brand new parts.
Used Parts for sale (to repair your sign): NOT COMPLETE SIGNS.


Picture 1 show 2x rear of tapered sign + 3x front tapered signs + 1x front rectangular sign
Picture 2 & 3 show the rectangular sign.  (34 cm x 16  cm), Depth = 30 cm.
Picture 4 & 5 show the tapered sign.  (34.5 cm x 17 cm), Depth = 38 cm.
Picture 6 show the rear plain back, for exit sign 
Picture 7 shows the back of exit signs (discolored)
Picture 8-11 shows a NEW kit, rectangular (damaged), (front & rear sign + plastic back plate)