Work to date comprises a rolling chassis on wheels, tender, boiler shell and smokebox assembly, cylinder, motionwork and valve gear, crankshaft with flywheel and brass gearing.
| length/inches | 18 |
| width/inches | 9 |
| height/inches | 12 |
| weight/kg | 8 |
| wheel material | steel |
| cylinder material | gunmetal |
| boiler type | locomotive |
| boiler material | copper |