The image is a vintage, black and white line drawing of a tower, reminiscent of the Eiffel Tower. The tower is tall and slender, with a lattice-like structure. It tapers upwards to a point, and has a small platform or observation deck near the top. The base of the tower is wider and more ornate, with a decorative pattern. Above the tower is the text 'DESIGN No. 13' and '34'. Below the tower is the text 'THOS. V. TREW, 26, TARBERT ROAD, EAST DULWICH GROVE, LONDON, S.E.'. The background is a pale, off-white color.