| Name | Mercury (1878) | Explanation | |
| Type | Despatch vessel | ||
| Launched | 17 April 1878 | ||
| Hull | Steel | ||
| Propulsion | Screw | ||
| Builders measure | |||
| Displacement | 3730 tons | ||
| Guns | 10 | ||
| Fate | 1919 | ||
| Class | Iris | ||
| Ships book | |||
| Note | 1906 d.s. | ||
| Snippets concerning this vessels career | |||
| Date | Event | ||
| 15 July 1889 - 18 September 1889 | Commanded by Captain Charles Johnstone, for the Naval Manoeuvres | ||
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