Reiss Stahlbeton slide rule container 1960 Eastern Germany

This is a wooden Reiss dedicated slide rule for reinforced concrete with Fe is 1400Kg/cm. The magic happens on the back of the slider with additional tables on the back of the rule. The Reiss name and model number are on the rule itself and on the name is on the cardboard container. It sports a cursor that had hairlines on 3 sides because there are also scales on the small sides! Very nice design and quality made. The cursor has multiple hairlines and 4 screws for the attachment of the side pieces with hairlines. Cursor, slide rule and container are complete and in very good condition with minimal signs of normal use and age. It measures ca. 30 cm or 12 inches. Check the attached video on how to work your vintage man tool: slide rule operation instructions!