Mounted on a wooden base, paintwork is somewhat grubby; the engine runs nicely on air in both directions.
| length/inches | 5 1/2 |
| width/inches | 4 1/2 |
| height/inches | 7 |
| weight/kg | 1 1/2 |
| bore x stroke/inches | 3/4 x 3/4 |
| wheel material | cast iron, 3 inch diameter |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | pole |