with this recent talk about Harrow-on-the-Hill and Rickmansworth having their describers updated, i came across this photo today in the LURS collection, no details are known, (date/location) but i suspect it must be Baker Street. thought you might like to see it:
I rather agree that it's Baker St, it's certainly very similiar to the ones that I recall. As a kid I remember the confusion it used to cause to the occasional traveller when the stopping pattern of a train was shown across two panels which were not side by side!
I also remember (a bit later when I was commuting regularly) the stationman with a very loud voice who used to announce the train from Plat 2 in the rush hours. He used to out boom the admittedly rather quiet loudspeaker system.
There was a set on Plats 1 & 2 along towards the stairs down to the (then) Bakerloo, not sure if there was a set on P3 & 4, think there probably was. Yes on reflection I do recall a similar set upstairs as well.