Since 1921, the church of Saint-Laurent which dates from the 15th and 16th century has housed a collection of wrought ironwork that to this day is the only one of its kind in Europe.  The family collection of Henri Le Secq des Tournelles was donated to the city of Rouen, which at the time was the most comprehensive collection of ironwork.   Le Secq des Tournelles family was both the collectors and the art lovers. They acquired these items  from demolition sites as well as on the art market trying to collect, salvage and buy every piece that they could with the exception of the arms and armour which was already in their collection.