Roof ventilator and air extractor, from the Post Office

Roof ventilator and air extractor, from the Post Office, c.1890

Details

Category:
Heating, Cooling and Ventilation
Object Number:
1969-78
Measurements:
overall: 2000 mm x 770 mm x 770 mm,
type:
roof ventilator
credit:
Ministry of Public Buildings & Works