Complete with original box, assembly and operating instructions; the engine turns over freely.
| gauge | Gauge 1 & smaller |
| length/inches | 17 + 9 |
| width/inches | 4 |
| height/inches | 5 1/2 |
| weight/kg | 6 |
| bore x stroke/inches | 11 x 20mm |
| axlebox type | plain bearing |
| cylinder material | 4 x gunmetal |
| valve type | slide |
| valve gear | Walschaerts |
| reverser type | screw |
| year built | 1990 |
| boiler maker | Aster |
| working pressure/psi | 50 |
| boiler material | copper |
| mechanical pump | axle |
| hand pump | yes |