A well-advanced 5 inch gauge Black 5, built from a 2004 ModelWorks kit - the project foundered when the owner migrated to 7 1/4 inch gauge part way through the build, it has sat under his bench for the last six years.
Silver soldered CE-marked copper boiler, 90psi working pressure with original manufacturer's hydraulic test certificate. Feed by injector, axle and hand pumps. Cast iron cylinders with piston valves actuated by Walschaert's gear with screw reverser in the cab. Mechanical lubricator.
Somewhat idiosynchratic paint scheme, black with red highlights - I suspect seen nowhere other than India (for which you'd also need a big brass star on the smokebox door).
Complete with builder's diary notes and all original assembly instructions in two large binders.