Original nice size 2 black rubber GM38 gas mask with blue painted metal parts. The blue was used to indicate that it is made from ferrous material as opposed to early versions which were non-magnetic. This was an important distinction to make as these blue masks would not be issued to men handling sensitive equipment or optics which included compasses and some communications equipment. Basically, the blue says keep this mask away from sensitive equipment, like a V1 guidance system. The filter is the one it was found with. Nice gas mask in good condition.
