EditorialModel of a Ventilating Shaft and Portlight, Model of an air and light tube. Model of a part of a ship's wall, on a groundboard. The ship's wall consists of the skin, two wooden parts and the weight, the space between the wooden parts is the air duct, p...
EditorialHALL STOVE, BY PIERCE, JERMYN STREET, LONDON, UK. THIS IS A PRO-PNEUMATIC WARMING AND VENTILATING STOVE GRATE, SUITABLE FOR THE ENTRANCE HALL OR STAIRCASE. THE OUTER COATING IS OF CAST IRON AND THE INTERIOR IS OF PREPARED FIRE-CLAY.