New Zealand 
Lands & Survey Dept., Wellington 
Norway 
Dept. of Geodesy, Agricultural College, Vollebekk 
Pakistan 
survey of Pakistan, Karachi 
Peru 
Instituto Geografico Militar, Lima 
Rhodesia 
surveyor General's Dept., Salisbury 
south Africa 
Dept. of Transport, Pretoria 
Sudan 
Sudan Survey Dept., Khartoum 
Sweden 
Div. of Photogrammetry, Royal Instit. of Tech., Stockholm 
The Geographical Survey Office, Stockholm 
VIAK Consulting Engineers, Stockholm 
Thailand 
Royal Thai Survey Dept., Bangkok 
Tunisia 
Div..Topographique, Min. des Travaux Publics, Tunis 
Turkey 
Directorate General of Cartography, Ankara 
Photogrammetric Dept., Directorate of Land Registry, Ankara 
U.K. 
B.K.5. Surveys Lts., Leatherhead 
Directorate of Overseas Surveys, Tolworth 
Mapping & Charting Estab. (RE), Feltham 
Ordnance Survey; Southampton