Carl Zeiss “Umbral” dust goggles with black pouch

General purpose dust goggles or “Umbral” goggles as patented and produced by Carl Zeiss, Jena. The construction of the goggles and the pouch indicates that this is a late war production set. The goggles itself are made out of a sort of tan coloured rubberized material. The pouch seems to be made out of a black pressed paper Ersatz material. Nice example of dust goggles!