Maska przeciwgazowa wojskowa z bidonem OM-90 Maska gazowa
maska plynová M10M 2xfiltr+JP - Armatex s.r.o.
OCHRANNÁ MASKA OM-90
File:OM-10M front.jpg - Wikimedia Commons
Ochranná plynová maska OM-90 - Sullyho zbrojnice
Polish OM-14 industrial mask with documents made in second quarter of 1984, size 2. I thinkt that second mask is OM-14 too, but I haven't got any documents to prove that (my