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Mother-of-pearl in its raw shell form The new Pinna Collection launching on June 1 is named after the Pinna nobilis (noble pen… | Pen shell, Pearls, Product launch
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Partially sorted mixture of freshwater pearl shapes and colors (Color... | Download Scientific Diagram
![File:Pinna nobilis - Atlas de poche des coquilles des côtes de France - Paul Klincksiek - 1913.jpg - Wikimedia Commons File:Pinna nobilis - Atlas de poche des coquilles des côtes de France - Paul Klincksiek - 1913.jpg - Wikimedia Commons](https://upload.wikimedia.org/wikipedia/commons/1/1e/Pinna_nobilis_-_Atlas_de_poche_des_coquilles_des_c%C3%B4tes_de_France_-_Paul_Klincksiek_-_1913.jpg)