A cameraman films a model of the spire of Notre-Dame cathedral at the Les Compagnons du Devoir headquarters in Paris, France, April 24, 2019. Around 10,000 students are trained every year by Les Compagnons du Devoir, who like in the mediaeval period were skilled in different crafts. The head of Compagnons du Devoir alerted the French government in the wake of the fire that there was a lack of manpower in the building trade, which could slowdown the reconstruction of Paris' Notre-Dame Cathedral. Picture taken April 24, 2019. REUTERS/Benoit Tessier