Unsteamed, it's in as-new condition, complete with original box, custom-made wooden carrying case, touch-up paint, assembly and operating instructions.
| gauge | Gauge 1 & smaller |
| length/inches | 17 + 10 |
| width/inches | 4 |
| height/inches | 5 1/2 |
| bore x stroke/inches | 12xx x 20mm |
| cylinder material | 3 cylinder, gunmetal |
| valve type | slide |
| valve gear | Gresley-Holcroft conjugated |
| reverser type | screw |
| lubricator type | displacement |
| boiler number | 273 |
| boiler maker | Aster |
| working pressure/psi | 50 |
| boiler type | spirit-fired |
| boiler material | copper |
| boiler construction | silver soldered |
| safety valve(s) | 2 |
| mechanical pump | 1 |
| hand pump | 1 |