Vintage Bluebird Polly Pocket Set 1992 blue sea princess / mermaid

A blue compact round case with a blue jewel on the cover measuring approx. 2.75″ by 2.50″ by 1″. The upper part has a ship interior with a hammock and a throne. The lower an underwater scene with a clam and a cave. Includes the dolls Polly and an orange otter.I don’t recall this set ever having a chain like others I’ve seen online , but it’s possible my religious extremist mom took it so I wouldn’t be tempted to make some sort of jewelry —marked down from current comparable pieces elsewhere accordingly