24 x 16 cm, hardcover, xiv, 196, (2) pages, Text in German, previous owner's name, slightly browned, although in very good condition, see picture.
Die Grundlehren der Mathematischen Wissenschaften in Einzeldarstellungen, Band XXXV. Comprehensive early 20th-century treatment of geometrical optics, including ray theory and optical systems, illustrated with 60 figures.