@hazardwarning Looks to be a similar scale to this loco
// @matigo
which is being built on a private miniature railway some 25 minutes north of here. A friend's doctor has been running it as a hobby for the last 35 years, gradually building it up to its present state. All volunteers who work on the railway are ex-patients of the doctor.
That photo is a bit over a year old, they built it from scratch in their workshop. It'll be running on a 12-inch gauge track.