The benchmark is 00.00. The backsights are 6.00, 9.32 and 13.75 and 14.00 The foresights are 6.00, 9.00 and 3.22. What is the height of the instrument? H.I.
The benchmark is 00.00. The backsights are 6.00, 9.32 and 13.75 and 14.00 The foresights are...