Here is an undated picture of Collett 2251 Class, No 3216 and the location is unmistakably Banbury. The real puzzle is when? Below is an enlargement of the smokebox door showing the 84C shedcode. According to my half dozen ABC shed books, I cannot trace the loco as having been at Banbury and the website BRDatabase quotes:
pre-1953 - not stated 16.5.53 to 84F Stourbridge Jc 30.1.54 to 87G Camarthen 18.6.55 to 85A Worcester 8.10.60 to 92G Templecombe 12.63 withdrawn
Does this lead us to conclude, bearing in mind that BR style front number plates weren't seen here until around 1950 and this looks like a high summer's day, that the picture was taken sometime between 1950-52?
John Smart has been in touch to say that several records (that I could not find; John's good at this!) show that 3216 was at Banbury from Nationalisation in 1948, departing to Stourbridge as shown above. I'm embarrassed to say that this is one of the quickest resolutions to date!

