Terrestrial metric camera, TMK 26120.Upper diagram: Radial distortion curves. Camera 
constants, Cj = 59.961 and c 2 — 59.839. Centre diagram: Standard errors of the curves. Lower 
diagram: Transformed radial distortion curves. Camera constants, c 1 = 59.990 and = 
59.880. Curves number 1: Photography from the same station. Curves number 2: Photography 
from four different stations. See also Tables 16 and 17.