19th-century brass parallel ruler for cartography A drafting and navigatio...
19th-century brass parallel ruler for cartography
A drafting and navigation instrument designed for drawing parallel lines on maps and plans. This parallel ruler is made entirely of brass and features a central hinged mechanism that allows the ruler to be moved while maintaining its orientation. Both ends are equipped with adjustment knobs and dials. This type of instrument was used by cartographers, surveyors, and in the maritime field to plot directions and bearings on maps. The set is preserved in its original rectangular wooden case.
Details: Period: 19th century; Function: parallel ruler for cartography and navigation; Material: brass; Ruler dimensions: 46 x 6 cm; Case: wood; Condition: good vintage condition, signs of use, oxidation, and patina consistent with its age.
19th-century brass parallel ruler for cartography
A drafting and navigation instrument designed for drawing parallel lines on maps and plans. This parallel ruler is made entirely of brass and features a central hinged mechanism that allows the ruler to be moved while maintaining its orientation. Both ends are equipped with adjustment knobs and dials. This type of instrument was used by cartographers, surveyors, and in the maritime field to plot directions and bearings on maps. The set is preserved in its original rectangular wooden case.
Details: Period: 19th century; Function: parallel ruler for cartography and navigation; Material: brass; Ruler dimensions: 46 x 6 cm; Case: wood; Condition: good vintage condition, signs of use, oxidation, and patina consistent with its age.
