Horizontal sundial for latitude 43ďż˝ with brass gnomon on...
Horizontal sundial for latitude 43ďż˝ with brass gnomon on sla
Horizontal sundial for latitude 43ďż˝ with brass gnomon on slate base, also with an iron frame having an aperture to allow a ray of sunlight to fall on a part of the base engraved with an analemma for correcting for the equation of time, and a grid indicating months, and hour lines close to noon