Beschrijving
Cardboard hardcover with grey paper spine an illustrated front board. The boards are slightly discoloured and the edges worn. The contents are in good state. 260 x 200 mm, [3] 4-16 pp. This beautiful book contains information about how the telephone was build and worked. This is clarified through illustrations in black and white and eight coloured fold-out (pop-up) plates in the back of the book.