The boiler - built as one of a batch - has no maker's mark, although appears competently made with neatly flanged plates and solder penetration, the firebox stays nutted and calked.
| gauge | 5 inch |
| length/inches | 31 |
| width/inches | 20 |
| height/inches | 20 |
| weight/kg | 35 |
| wheel material | cast iron |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered with nutted and calked firebox |