In message
-sept
ember.org, at 17:19:14 on Fri, 4 Mar 2016, Recliner
remarked:

I think they re-used the platform exists, stairs, and over-tunnel
passageway, but linked that to the new corridor to the south of the
running tunnels, rather than the 1906 lift landing to the north.

Yes, that's what happened, but *why*.

Cheaper and easier? Less disruption to the Piccadilly line? And not a
downside for pax near the eastern end of trains. Those at the western end
can use the escalator route.

A bit of an unhappy compromise, with hindsight.

Does the signage at the western end of the Piccadilly platforms point to
the escalators, or back to the passage, for connections with the other
two lines?

Incidentally I'm still coming up empty trying to find a picture of the
original (pre 1933) Dover Street station exterior. Presumably above the
"Dover Street Shaft".

Yes, me too. I guess it must have been redeveloped a long time ago.

Yes, but what I meant was a pre-1933 photo of the pre-1933 station. That
would at least perhaps confirm where on Dover St it was (I've also yet
to find an old map indicating that).
--
Roland Perry