In the present paper we focus on the necessity of conservators-restorers to be equipped with scientific research tools such as observation skills from the beginning and throughout their education. We exemplify the necessity of this with two cases from the applied conservation-restoration practice in parchment and wax-resin lining of paintings. respectively. and show that research tool... https://lecoureures.shop/product-category/ski-de-fond-enfant-skis-skate/