XEE4404934 Sappeurs Pompiersde Paris. The ladder\'s behind the scenes. Manoeuvring the ladder behind the scenes is the simplest. Weighing 34 kilos, 0m45 wide, having, redeployed, a height of 4 meters, it is in two planes, the uprights of the second being embedded in a double groove or slide practiced throughout the height of the uprights of the first. The second plane slides easily on the first and gives it a total height of 7m20. by French School, (19th century); Private Collection; (add.info.: Sapeurs Pompiersde Paris, The ladder behind the scenes, The manoeuvre of the ladder behind the scenes is the simplest. Weighing 34 kilos, 0m45 wide, having, redeployed, a height of 4 meters, it is in two planes, the uprights of the second being embedded in a double groove or slide practiced throughout the height of the uprights of the first. The second plane slides easily on the first and gives it a total height of 7m20.); Stefano Bianchetti.