Heitengi Zukai (Pioneering work on Astronomy) by Iwahashi Yoshitaka
[Explanation of the Planisphere of the Heavens]
Splendid work on astronomy and how to use the instrument (Heitengi) he created the previous year. Three diagrams have movable hands as issued.
by Iwahashi Koryudo [Yoshitaka]
Osaka. Morimoto Taisuke et al. 1802. 1st edition.
84pp. 25.8 x 18.1cm
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.
b31020293