GWR Collett 'Castle' class 4-6-0 no. 4076 Carmarthen Castle in charge of the Up Torquay Pullman which, in its shortened version, ran only in 1931 as I recall but viewers' corrections would be welcomed. the location is obviously in South Devon and might be Teignmouth.
No. 4076 was built in 1924 and saw its end of days whilst allocated to 87F Llanelly in February 1963.