| Name: | UNKNOWN | 
| Type: | Steam Launches | 
| Keel: | 01/1891 | 
| Launched: | 03/06/1891 | 
| Completed: | 08/1891 | 
| Builder: | Sir WG Armstrong, Mitchell & Co Ltd | 
| Yard: | Elswick | 
| Yard Number: | 580 & 581 | 
| Dimensions: | 18.5disp, 46.0 x 9.0 x 5.3ft | 
| Engines: | C2cyl (7 & 14 x 8ins), 50ihp | 
| Engines by: | AG Mumford Ltd, Colchester | 
| Propulsion: | 1 x Screw | 
| Construction: | Wood | 
| History: | |
| 08/1891 | Government of Brazil | 
| No later history known | |
| Comments: |