It's a fictitious livery of course[on this loco] ...
,like every one that they've applied to this loco..[except GWR green,of course,-but even then-I think the prototype was plain green without the 'Great Western' lettering..]
The Hornby model body-wise is quite accurate,-compare it to the plans in the J.H.Russel book...-but it is such an obscure prototype [I'm relying on memory here,-so may not be 100% accurate]being built in 1901 as an experimental loco [oil firing
] and scrapped in 1909,and spending a lot of that time at Swindon,that is really of
no practical use on a layout...although I think it was trialled briefly on the Blagdon branch..
You can't even say it's "a typical industrial shunter"*[a phrase beloved by the modelling press],because it doesn't even remotely resemble anything else..
*Ooooh,-I hate that term!
,- there's no such thing!,-Industrials need to be modelled accurately!!
So much for the Hornby model,-with regards to the London and South Western Railway,there's no shortage of stuff out there in books,and I've just Googled it and it comes up with over
5 million references,-so that should keep you busy for a while...