vintage hand drawn seashell collection. set of various beautiful engraved mollusk marine shells on retro textured

animal aquarium background barnacle beautiful black clam cockle cockleshell collection conch decorative engraving etching exotic graphic grunge icon illustration ink isolated life marine mollusk mussel nautical ocean oyster realistic retro scallop sea seafood seashell seashore set shell shellfish silhouette sketch snail spiral summer texture tropical underwater vintage wildlife