A selection of instruments relating to airflow including:-
	
Wind Speed & Direction Indicators & Recorders
	
Cup Counter Anemometers
	
Cup Contact & Cup Generator Anemometers
	
Dines Pressure Tube Anemographs
	
Sensitive Anemometers
	
Portable & Biram’s Air Meters
Softback cover, 24 pages with loose price list July 1973.