Nistri periscope

The Nistri periscope is a specialized tool used in archaeology, first employed in 1957. It is inserted into burial chambers to photograph the walls and contents of tombs. This periscope is a type of optical instrument that allows an observer to see their surroundings while remaining concealed or submerged. Periscopes typically use mirrors or prisms to redirect light through a tube, often incorporating a telescopic system for magnification and a reticle for sighting. While commonly associated with military applications like submarine navigation and warfare, the Nistri periscope demonstrates its utility in archaeological fieldwork for documenting discoveries.12