Астрономiя
A Russian-language astronomy textbook by A. Möbius, published in 1907 for students and general readers. The plates are line diagrams: celestial spheres crossed by labelled great circles, horizon and meridian lines, orbital ellipses with foci and tangents, and paired circles tracing planetary positions by number — usable as geometric constructions, lettered schematics, and dashed-line overlays.
