Russian helmet (?)

[sksvlad]

The seller's ID said "Russian WWI". I seriously doubt, but also have never seen anything like that. So what is it?

 

[batonroundcollector]

Yugoslavian firefighter helmet maybe (not WW1)??

 

[Falcon]

Batonroundcollector looks to have the correct answer.

Do any members from the Former Yugoslavia countries have any more information?

https://www.worthpoint.com/worthopedia/yugoslavia-fireman-firefighter-helmet-149383459