You can find a lot of the Russian tanker E’s on the web, but you won’t find this unit anywhere! Beautifully made, with clear and sharp optics, these Czech units appear to be brand-new. Made in the early 1970’s, each unit has the date, serial number and the CSA logo engraved on it. (We even have nr. 0001/1971). These units were used by footsloggers. Unlike the Russian units, these don’t have the cloth helmet, they seem to have been hand-held. The headlight is center-mounted on the binoculars, with cables running down to the battery pack and amplifier. This astonishing unit lights up 150 yards, yet no one can see you. The power required is a 4Vdc/4.5Ah battery. Magnification 1x; field of vision 35º; range of vision 100mm; resolution 35; diopter focusing ±5. These had been used until as late as the year of 2000, according to the maintenance logs. The light bulb is 20 watts. The entire unit comes in a heavy metal case, with many spares including bulb and IR filter. Additionally the goggles themselves are in a beautiful leather case. Batteries (for example: Werker WKA4-4.5F2) are readily available alarm and emergency lighting units. Hit the switch, the amp starts humming, the light goes on, and you’ll be dazzled by what you see! Tried it out at my apartment in Germany and felt like a voyeur… The binox weigh 2.2 lbs; battery case w/amplifier (without batt.) 3.6 lbs. Weight in metal case: 22.5 lbs measuring 16.5” x 10” x 7.5” Complete with rechargeable battery.