Exact Matching Concepts from Other Schemes
- found: His The battle of the River Plate, 1956.
- found: The black ship, 1998: t.p. (Dudley Pope) jkt. (b. 1925; d. 1997)
- found: Ramage's diamond, 2001: CIP t.p. (Dudley Pope) data sheet (b. 29 Dec. 1925)
- 1980-05-14: new
- 2001-11-16: revised