A BIG Old Authentic Soviet Russian Industrial Propaganda PLAQUE. Inscriptions: "Don't throw down the oxigen gas cylinders! They can explode", "Oxigen".
Dimensions: 11 3/4" x 7 1/2" (30 x 19 cm).
Very nice and rare item. Good condition, there are some small scratches - see photo for all details.
These Plaques were taken from Soviet Military Plant building after Soviet Union disintegration.