During the fifties, the Dutch army gradually switched to American organisational patterns, and received (military aid ex-USA) much American military equipment, including binoculars. British artillery gun-laying equipment, compasses, and so on, were based on the division of a circle in degrees. The American system was/is based on the "mil" (360 degrees = 6400 mils).The graticule is on the left side.
This one was used at the 45 Afd. Lt. Lua (45 ste afdeling lichte luchtdoelartillerie te Leeuwarden)