Thanks so much, Dave. I should certainly have looked more closely at the photo at Headstone lane because the location is obvious (Tim had shown the location for all these as the bridge south of Kenton Station) and I'd simply failed to note the tube train on the extreme right of the photo of 46206. I've included both these corrections in the original script accompanying the photos.
A nice sequence here of 14XX 0-4-2T 1421 on the 1.54 train to Bourne End on 14th April 1962. There's a "Maidenhead" board on the rear of the coach. Home shed at the time was Reading, thence to Exeter in November, then Gloucester Barnwood a year later before withdrawal in December 1963. (SLS). It was scrapped at Birds, Risca, Newport, by the end of May 1964. (Rail UK).
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King 6026 King John on the up Cambrian Coast Express stated to be at Saunderton but did the CCE route take the train passed Saunderton? on 14th April 1962. Seen previously in post #1810 6026 King John was an Old Oak Common engine withdrawn in September 1962, (SLS) thence to Swindon Works where it was scrapped by the end of 1963. (BR Database).
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Tim took this one from an Intercity Paddington to Birmingham train on 14th April 1962. We have no further details.
Edit: If we assume that this photo was taken on the New Line, as the previous and following photos, then the presence of the electrified lines to the RHS mark this out as between Old Oak and South Ruislip. The housing beyond the underground lines at the same level as the BR lines suggests between Greenford and south of Northolt Jcn..
Since, I think, the LT lines are not to the east of the GW lines then this is an up train rather than a PDN to Brum service.
The LT Central Line is on the south western side and I would go further and narrow this down to between South Ruislip (in the distance) and Ruislip Gardens. Judging by the smoke trail the photo was taken from a northbound train looking towards the rear while crossing the bridge over Bridgwater Road - of which the girders can just be seen on the bottom far right..
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King 6008 King James II on a Paddington to Shrewsbury train at High Wycombe on14th April 1962. It was a Stafford Road engine from February 1959 and withdrawn in June 1962. (SLS). It was demolished at Swindon works during January 1963. (BR Database).
Edit: The bus in the forecourt lookes like a Thames Valley Traction Company Bristol.
I am not aware of many photos being taken from such a vantage point... was Tim up the ladder of the water tower on the up platform... was the camera pointed through the railings on the retaining wall?
I would say this was taken from Totteridge Road over or through the railings of the retaining wall. I don't think the water tower ladder would be tall enough to obtain the same angle.
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Brian