Pretty simple as far as handmade masks go, but quite evocative things I think. One finds some similar that were made in. Japan, but these are stamped Germany on their interiors, and I would guess date to the 1920s-40s or so.
Smallish face sized: 5 7/8" t x 5" wide, measured straight across the back (not on the curve. Very good condition. One would need to attach ribbons or elastic at the temples to wear, or thread a little loop or two to hang. Price is PER MASK.