The classical papers of Raspail (1829. 1830) and Duval-Jouve (1841) described a wide range of belemnite species. mainly from the Lower Cretaceous of the Castellane-Peyroules area (Alpes de Haute-Provence. France). https://countryscenesaddleryandpetsuppliers.shop/product-category/pre-oiled-stitched-back-billet/