LBSCR B4X class 4-4-0 No. B70 looks splendid in Southern lined green livery and it's a shame that we are unable to see this from the sunny side of the central subject. There was no date stated for this shot but it must have been taken before the number's 'B' prefix was removed in June 1931. The stated location is Basingstoke which seems to be an odd place to see an LBSCR locomotive in that era but it should be noted that the visible carriage is, in fact, an ex-LSWR one.
B70 was one of Lawson Billinton's nominal rebuilds of the B4 class and this example entered service after the grouping in May 1924. On paper, at least, it survived in to BR ownership but never received its projected number, 32070 and according to my records seems to have spent almost all its time from nationalisation until withdrawal from service at New Cross Gate shed in August 1951 as a stored engine.
Peter Smart has suggested that this location simply doesn't fit the profile for Basingstoke but it's also interesting to read Chris Knowles-Thomas's notes regarding the B4X class in the early 30's: "A number of B4Xs were repaired at Eastleigh from 1930 & B70 visiting the works in that year. So that may explain the ex-LSWR location if, indeed, it is."