A striking triangular definitive-style issue from the Republic of South Moluccas (RMS), featuring two vividly illustrated tropical fish against a soft aquatic background. Printed in rich red and green tones, the top panel carries the denomination 15k, while the base panel boldly names the issuing entity. RMS was an unrecognized breakaway republic, and its stamps are considered cinderella issues, popular among collectors for their bold designs and political history. This piece is especially desirable for thematic collectors of fish, triangular stamps, and unrecognized states.