A vintage 1 1/2 inch scale Marshall oilbath portable engine. An interesting older model - scratch built, we assume to the builder's own design.
Overall in good mechanical order although with some runout on the flywheel, the engine runs beautifully on air.
| scale | 1 1/2 inch & smaller |
| length/inches | 16 |
| width/inches | 7 |
| height/inches | 18 |
| weight/kg | 8 1/2 |
| wheel material | steel |
| axlebox type | plain bearing |
| cylinder material | cast iron |
| valve type | slide |
| valve gear | single eccentric |
| boiler type | locomotive |
| boiler material | copper |
| safety valve(s) | 2 |
| safety valve type | Ramsbottom |
| mechanical pump | 1 |