The work of an experienced model engineer, it has neatly flanged plates with good solder penetration.
| length/inches | 6 |
| width/inches | 3 |
| height/inches | 4 |
| weight/kg | 0.5 |
| working pressure/psi | 50 |
| boiler type | horizontal cross tube |
| boiler material | copper |
| boiler construction | silver soldered |