Dan Mask - Zakpai?

[Antondimuro]

Hello, I am new on this forum, hi to all. I have recently purchased this Dan Mask. I do not have much info, but from its very essential asoect, the thin vertical line amd the prominent lips it looks to me as Zakpai one (Fire watchers) from early XX century. Would you agree? Also any advoce for a decent online appraisal?