This looks very odd to me.
If at all possible, you should use a coloured wax instead of a colourless one. Colourless is really only for cases where the colour is extremely difficult. In all other cases coloured wax is preferable. With these shoes, particularly, it should be very easy to find a high-quality wax of matching colour.
To "repair" the current damage, use a good cleaner at first and try to remove as much of the wax and decolourisation as possible. Maybe a wash or even a full bath might be necessary. Use clean water, mild soap and a brush for that purpose.
Afterward start with a base of coloured pomade (the stuff in glass jars), brush, and then proceed with a high-quality hard-wax polish (again in a matching colour).
If, after the cleaning and washing or bathing and subsequent drying (not near a heat source) you see that the discolourisation is not gone, you may want to consider "antiquing" the toes to better cover the difference in colours.
Originally Posted by Luta Livre
There is a dearth of skilled cobblers in my city.
As such, appreciate your inputs on how to best remove/mask the discoloration on the toes of these Fratelli Rossettis. Discoloration is not from polish - have always used neutral shoe polish. Appears to be a combination of dirt+scuffing.
Picked up at Serravalle outlet two years ago, but worn sparingly.
Current care regimen is Collonil Premium Diamant shoe cream. Previously used Collonil Rustical. (Just polished - hence, residue in brogueing.)
Thanks in advance!