You mean the text: Copia forcelle Marzocchi regolabili nuove. ? Copia is a couple, also two pieces
I think they bought surplus stock where the factory made some errors, in this case they are to long. In the table on the right, the text "Non compatible parts". There it says: length and wheel spacers and pin.
The lenght is to long, your is 750 now,
KR 750
KS 770 sticks 20mm trough the clamps for the clipons
KT 778
Question is how much can you stick them through the triple, before the 54mm part of the fork is outside the clamps. The top ones are long as you can see on the picture, the bottom ones are invisible.