[Flavio P.]

Does anyone here has any good sources into late 15th century Burgundian Armour?

There are some good depictions of fabric covered armour and open faced helms in the pastrana tapestries.

[Flavio P.]

Even Surviving Helms from Burgundian origin tend to be mostly kettle hats.

[Lafayette C Curtis]

Try the Swiss Chronicles -- some of them have interesting illustrations of Swiss vs. Burgundian battles.