Maximilian close helmetfor ID

[Marcus den toom]

Recently this close helmet of fluted maximilian type has entered my collection.
It is 32cm high (with lames), 20cm wide at the skull, 26cm from back to visor.
The neck opening is 15 by 16,5cm.
It can be opened by means of a push button (missing) just as the visor (see pictures.)

Can anyone tell me the age and any other relevant information this is my first helmet