This is the Rapido OO Scale GWR 44xx No.4400 Great Western Green - DCC & Sound Fitted [951501].

GWR 44XX Class
No.4400
Great Western green livery (1920s-1930s)
Inside steam pipes
Extra rivet strip on tanks
Straight filler lid stand
Tall safety valve cover
Peaked rain strips
Original chimney
Tapered buffers
Die-cast metal and injection moulded plastic construction
High quality motor and mechanism
Next18 decoder socket
High level of detail with plenty of separately fitted parts
Optional user fitted coupling hooks, vacuum hoses and steam heat pipes included
NEM coupler pockets
Sprung buffers

Company	GWR
Era	Grouping Pre 36 (1923 - 1936)