MINERVA PROFESSIONAL MECHANICAL CURVIMETER! Very rare. Beautiful new object, the same as the Panerai nautical Curvimeter. The Curvimeter has 4 scale formats: 1:100, 1:50, 1:25, 1:20. • The measuring wheel is supported by 2 jewel bearings. • It has with a lap counter and a reset button (zero setting). • Model: stainless steel case • exclusive pouch included High-quality Swiss Made blueprint/map meter. Minerva Switzerland engravings on the back. Used for rallies, nautical purposes and architecture. A Minerva Curvimeter is a precision instrument which measures and records straight or curved distances with high precision and speed, backward or forward motion. The Minerva Curvimeter is excellent for blueprint, drawing or map scaling. A pushbutton resets the indicator at zero. The tracer wheel incorporates two jewel bearings.