Shadow steiner sofa bed

Reference: shadow 2006 "new mechanic" 3 places. Convertible 140. (l.189x h.86xp.97) my measurements are slightly different. Mechanical structure in lacquered steel. Woodwork: solid beech stained wenge. Covered with gray "vota" fabric. Purchased in 2009, the bed has only been used on very rare occasions (less than 10 nights). Non-smoking owner, no pets. Fabrics in perfect condition and easy to clean (was protected with a plaid.) Small traces of about 2 mm, shallow on straight armrest and easily catchable with a varnish according to the brand. I have not found the weight, but it is heavy because of the mechanical structure of the bed and the quality of the product, the armrests are removable.