ITALY 
DEPARTMENT OF FINANCE 
GENERAL DIRECTION OF CADASTRAL SURVEY AND OF THE TECHNICAL SERVICES 
  
ON THE FINAL TESTING OF CONTOURS 
IN AIR SURVEYED MAPS 
ON LARGE SCALE 
Communication by Prof. Eng. Alfredo Paroli 
to the 7th International Congress of Photogrammetry 
Washington, 1952 
'SSCUDO! A TIP, *M« MARIZ? - BOLZANO