Vectronix Vector IV (4)
Binocular Rangefinder set
Same size and function as the Vector 21 but its only for 6 Kilometers
Read more here:
http://www.vectronix.ch/userupload/504_VECTOR_brochure_EN.pdf
Here is the manual:
http://xn--80agccrprep.xn--p1ai/wp0/wp-content/uploads/2011/02/Vector_USMC.pdf
