Sykes and other variants
There were probably dozens of talented individuals who attempted to make
locomotives that could handle the rugged terrain and steep grades that were
part and parcel of the logging business.
Avonside
Similar to a Heisler in function, this manufacturer had two similar designs.
The gearing is housed in the enclosed trucks.
Price
Essentially a New Zealand-born Climax.
Johnson & Company
Also from New Zealand came this four truck variant.