Epact Scientific Instruments of Medieval and Renaissance Europe

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 Explanatory articles
   Armillary Sphere
   Astrolabe
   Astronomical Compendium
   Compass
   Cross-Staff
   Dividers
   Drawing Instruments
   Graphometer
   Gunner's Sight and Level
   Nautical Hemisphere
   Nocturnal
   Plane Table
   Primum Mobile
   Quadrant
   Radio Latino
   Sector
   Sundial
   Theodolite
   Time and Date
   Triangulation Instrument
   Universal Instrument