Thanks for that, I meant to do a trawl but didn't get around to it...The South Eastern Railway built shed loads (pardon the pun) of wooden station buildings all over Kent. Unfortunately, as well as having an historical tendancy to burn down (Staplehurst, Ore), NSE also rebuilt a fair few in the 1990's (Marden, Headcorn).
Happily there are a couple of survivors - Bexley on the Dartford loop, and Pluckley on the SE main line and West St Leonards are still with us.
In terms of wooden shelters, Ham Street and Rye have nice ones.
The destinations served (including continental destinations) carved into the stonework on the entrance lodges at Euston and the same at Blackfriars (although those at Blackfriars have been relocated from their original position).
I have looked at old photos of the concourse but not found anything. It was obviously designed to be seen by anyone on the concourse before someone else had the idea to cover it with advertising hoarding. It had clearly been hidden for decades when I saw it in 1975 and even quite ancient photos of the concourse do not reveal it. I would think the best plan would be to locate original drawings showing the concourse offices etc as I think it is definitely an original feature which for some reason fell out of favour. If anyone knows how to locate copies of the drawings on line that would be interesting. I just found this old picture which shows something blurry at more or less the spot I remember seeing it although that was behind hordings by 1975.That rings a bell, don’t suppose anyone can find any photos?