Heitengi Zukai (Pioneering work on Astronomy) by Iwahashi Yoshitaka
[Explanation of the Planisphere of the Heavens]
by Iwahashi Koryudo [Yoshitaka]
Osaka. Morimoto Taisuke et al. 1802. 1st edition.
Splendid work on astronomy and how to use the instrument (Heitengi) he created the previous year. Three diagrams have movable hands as issued.
In very good condition. Covers a bit worn and marked. Minor age wear throughout with a few stray marks and faint, old stains. Small amount of worming affecting the lower margins near the spine of a few pages towards the middle of the book. Text and illustrations unaffected. Otherwise very good. Neat stamp of 'Yamatoya. Murai, Shinshu [Nagano]' at top of a few pages.