Hannover or Prussia, name SCHASSE

Dear List,

I remember a photograph of an ancestor (i suppose) from my fathers family Sahs. He to me, (and I an no expert, looked dressed in Prussiian uniform.

Pointy helmet is what I remember from that lost picture. A roundish helmet with a point in the center.

If anyone can understand my discriiption..would that be the type of helmet worn by Prussiian soldier?

Warmest regards,