Title
Cross-staffs used for surveying
Caption
Cross-staffs used for surveying: in this case for measuring the width of a river by triangulation. From Sebastian Munster "Rudimenta Mathematica", Basle, 1551. Woodcut
Date
1551
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP07103_460000613
License type
Rights managed
Available size
27,2Mb (1,9Mb) / 11,8in x 8,9in / 3543 x 2679 (300dpi)