Original Romanian army 7x40 binoculars IOR with IR filterbinoculars has a body made of steel and a heavy rubber armor coveringThe lenses have a T3 Magnesium Fluoride, anti-reflex multi-coat which IOR claims to provide 98% light transmission. The bright image appears to be slightly yellow-amberManufacture years vary ~1965-1970Reticle + IR filter. At left side is a fold out IR filter Specifications: Manufacturer: IOR VALDADAType: DF IOR B /GA 7x40