细节
A Siebe Gorman & Co. Ltd smoke helmet and bellows
the helmet largely of toughened leather with simple safety/exhaust valve to top, makers plate, twin plexiglass hinged square ports with securing pin, soft leather neck guard and canvass covered air inlet pipes with signal plate and chain; the bellows of wood, leather and cast iron with makers plate, signal plate and canvass covered air outlet,the whole mounted on wooden base -- 25in. (63.5cm.) long
See illustration (2)
the helmet largely of toughened leather with simple safety/exhaust valve to top, makers plate, twin plexiglass hinged square ports with securing pin, soft leather neck guard and canvass covered air inlet pipes with signal plate and chain; the bellows of wood, leather and cast iron with makers plate, signal plate and canvass covered air outlet,the whole mounted on wooden base -- 25in. (63.5cm.) long
See illustration (2)