Berlin, Reinhold Schwarz Verlag, n.d. (ca. 1890). Small folio-oblong. Orig. full pictoriual cloth, gilt. Light wear to edges. 20 pp. of text, 10 large colour models of various machinery, trams etc. mounted on thick cardboard and each with many separable, moveable parts, 4 colourplates. some brownspots to textleaves.