Hello, I think they are all the same......however, with the surface rust and peeling paint, the only way to guarantee 100% identical would be to put them through the sandblaster. Unfortunately the sandblaster is very, very slow and for the price I have them listed at I can not spend the time to clean them up. If I spend the time blasting them I have to charge more for them simply for the additional time involved. If you want, I can blast all 4, confirm an identical pair but the price would be $50 shipped for the pair. Let me know.I can't tell if it's just the pictures but 4 and 5 look slightly different? Do 1 and 4 look more similar or are they all exactly identical?