Russian/Soviet Шлем Маска 66Му (ШМ-66Му)
The Russian/Soviet Шлем Маска 66Му (ШМ-66Му) was the mask included with the Противогаз Мало Габаритный 2 (ПМГ-2) kit. The Шлем Маска ШМ-66Му was an upgraded version of the Soviet ШМ-62, with a speech diaphragm and cut-out ear holes. This example was made in Moscow in 1974.
Шлем Маска ШМ-66Му = "Helmet Mask ShM-66Mu"
Противогаз Малогабаритный = "Compact Gas Mask"
Similar masks in my collection: Russian ShM-62u, Russian MM-1
