Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Sorry for the late reply, my phones not working so not getting upto date messages/emails.

What gauge is the loco as it looks to be 3.1/2" gauge. but maybe even 2.1/2" which isn't so common these days.

My loco is 1" scale, but not quite 4-3/4" , more like 4-5/8" gauge. I am thinking British gauge standards are slightly different from US gauge standards.  I recently re-gauged a 7-1/4" Bridget tank engine out to 7-1/2"  and actually had to spread the wheels 3/8" to get the correct back to back spacing for US (IBLS) standards. This Tilbury loco might follow the same pattern on the gauge.

If you could post some more photos of the loco from underneath, cab view, and smokebox, (with door open), I might be able to identify it better as to the design not just the body. Although locomotive designs tend to follow the same routes they do have slight variations in their design and how boiler fittings are arranged.

Detail photos are attached. The water tube firebox is very odd. I am not able to see how the tubes connect to the barrel, or backhead. The Stephenson valve gear looks to be professionally done. No flues in the boiler, but the smoke box is apparently functional, and has a blower pipe fitted. The bronze badge on the side has 1928 , perhaps a clue to the year built.

The prototype is a LT&SR 79 Class locomotive I believe, there is still at least one of this class that exists. LT&SR 79 Class 4-4-2T No. 80 Thundersley - Built in 1909. On static display, and is owned by the National Railway Museum (UK).
I agree, my engine looks like a Tilbury tank engine. I have found photos of Bassett Lowke models of this engine in O gauge.

Though saying that it could also be an LMS 2P class as the outline resembles that much more closely.
(Attachment Link)

I will speak with the curator of NRM and a few other friends and get back to you tonight and find some more detailed information for you.