Work to date comprises:
Boiler appears well made with neatly flanged plates and good solder penetration. Standard of construction and parsimonious use of silver solder suggests commercially built - all other engines from this collection had boilers either by Spink or Chambers - but marked only with a number, it bears no maker's mark.
| gauge | 5 inch |
| length/inches | 41 + 26 |
| width/inches | 9 1/2 |
| height/inches | 7 |
| weight/kg | 72 |
| wheel material | cast iron |
| axlebox type | split bronze |
| cylinder material | gunmetal |
| boiler number | 724.10.84 |
| boiler type | locomotive |
| boiler material | copper |
| boiler construction | silver soldered |