A device for and a method of making a pair of stereo-maps from a series of sections obtained by sectioning an object at various levels. The device comprises support means having a first recording sheet fixed thereon, a second recording sheet placed over the first sheet and duplicating means interposed between the two sheets. A manually operable slider is mounted on the work bench to slide the second recording sheet in the direction X. An optical system is provided for projecting one of thtet series of sections vertically on the second recording sheet so that projected image may be traced on the second recording sheet. The manually operable slider is adapted to slide the second recording sheet in the direction X to effect a parallax corresponding to the perspective of a new section to be traced on the second recording sheet. The device may further include third and fourth recording sheets disposed on the support means, a manually operable slider for sliding the third and fourth sheets in the direction Y, a deviator coupled to the latter slider to deviate the fourth recording sheet in the direction X, and duplicating means interposed between the third and fourth recording sheets.
