A collection of five original 17th and 18th century historical astronomical engravings all with plate imprints to include: 
 
- An engraving from Euclid's Elements from a 17th century copy, the original work by the Greek mathematician published around 300BC and addresses the geometry of three-dimensional solids. This is most likely from the 1733 English translation of Euclid's Elements by John Keill, revised by Samuel Clarke. Measuring 230 x 174mm.
 
- Marked "The Doctrine of the Sphere" a diagram of detailed spheres, intersecting lines, and shaded hemispheres represening the geometric principles used to explain the movement of celestial bodies and the mathematics of the celestial sphere. The presence of multiple spheres in different orientations suggests it is explaining changes in the position of the Earth or celestial sphere relative to the sun or stars, illustrating the effects of rotation, inclination, or the passage of time. Late 17th century, marked in pencil on the reverse 1681. Measuring 257 x 215mm.
 
- Marked "The Doctrine of the Sphere" this is an astronomical and mathematical diagram illustrating principles  in classical astronomy and geometry. The three spheres with intersecting lines and labeled points represent geometric constructions used to explain the properties of the celestial sphere, such as the movement of stars and planets, the division of the heavens, and the mathematics of spherical trigonometry. These diagrams were essential in teaching how the heavens were modelled mathematically from antiquity through the early modern period. Late 17th century, marked in pencil on the reverse 1681. Measuring 257 x 215mm.
 
- An astronomical diagram depicting the geometry of the celestial sphere, specifically related to the Doctrine of the Sphere. The spheres with latitude and longitude lines, shaded hemispheres, and intersecting circles represent the mathematical and geometric principles used in early astronomy to explain celestial movements, the apparent motion of the heavens, and possibly the calculation of phenomena like eclipses or the changing seasons.  Measuring 257 x 212mm.
 
- An astronomical or cosmological diagram, the word "Cosmog" for Cosmogony or Cosmographia probably from a later edition of Peter Apian's 16th century Cosmographia. Measuring 255 x 193mm.
 
The works will be shipped flat.