[Triarii]

Me again.
I've just given this Pappenheimer a clean up - removed the active rust and the layer of crud inside the pierced baskets. Wooden grip is a bit worn inside so the blade moves relative to the guard.
I'm trying to identify the maker here. I think the words are IOHANNI Z, but that may be my brain inserting letters that aren't there. The only candidate I can identify so far is Johanni Zucini, but this may be too late for him.

There are also anchor type marks at the end of the fullers and armourers marks on the ricasso which I cant find in Gyngall & Hawtrey. Can anyone help? Thanks.