Nigerian Railways no. 411 was one of ten pacifics built by Nasmyth Wilson between 1926 and 1928 and numbered in the series 405 thru' 414. 
There is no supporting data with this not perfectly sharp colour slide and even the nameplate on the smoke deflector isn't sharp enough to decipher what it says although it seems to start with "Emir of".
Nigerian Railways no. 163 River Sasha was one of 79 2-8-2's built by Vulcan Foundry  between 1947 and 1956 and were the last steam locos built for Nigeria.
BR English Electric Deltic type Co-Co diesel no. D9003 at Grantham during what was probably its maiden journey in 1961. Of note is that there is not yet a yellow warning panel on the nose and the name Meld< has yet to be applied. Withdrawal was less than 20 years after 6his shot was taken and December 1980 puts D9003 amongst the firsdt tranche of disposals of this much admired class of locomotive.
British Railways Diesel Hydraulic Class 42 No. D821 "Greyhound" at Kidderminster.
British Railways Diesel Hydraulic Class 42 No. D821 "Greyhound" at Kidderminster.
See photo in original gallery.