Hinks, Arthur R. (Arthur Robert), 1873-1945 · Cambridge, University press · leaf 188
Reconnaissance ladder incourse of erection. 3. Double tripod scaffold fortheodolite and observer. fieconnaissance ladder and beacon.Service Geographique de VArniee. Designed by Commandant L. Ditrand,11 Rcpinient dAriillerie. TOPOGRAPHICAL SURVEY 137 a chain should start from one base and close on…
Maps · Surveying
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