Thanks for the answers guys. Yes indeed optical illusion. See pics below. I'll try to clean the other Maillards asap but I'm working on girlfriends bike for the moment so might not be this week.
Probably better off ordering a new freewheel and then see without bothering with the used stuff and end up cursing even more 😂
Well spotted about the campy hub btw 😆
Jockey wheels are also brand new from Tacx