The engine runs well on compressed air; the boiler looks sound on a visual inspection, though a seized-open water gauge blowdown precluded a hydraulic test.
| length/inches | 15 |
| width/inches | 6 1/2 |
| height/inches | 9 |
| weight/kg | 6 1/2 |
| wheel material | steel |
| axlebox type | plain bearing |
| cylinder material | brass |
| valve type | slide |
| valve gear | Stephensons |
| reverser type | pole |
| year built | unknown |
| boiler maker | unknown |
| CE mark | n/a - < 2 litre capacity |
| boiler type | water tube |
| boiler material | copper |
| boiler construction | silver soldered |
| safety valve(s) | 1 |
| safety valve type | spring |