unusual world war ii-era american made vintage industrial high altitude flight crew breather oxygen tank once used on a b-29 "superfortress" bomber aircraft. the distinctive yellow enameled finish over metal was painted over in orange at some unknown point in time. the ribbed and/or banded metal tank retains the original fittings, including the pressure gauge. nicely worn and weathered paint finish. the ultra light weight breathing tank retains original black lettering indicating type, volume, etc. the original wooden cradle was lost long ago. exact fabricator unknown. measures 12 x 25 inches.