That is indeed Poet's Corner, don't know how old the pic is but it hasn't really changed. Phil you mention the Brum Cavern becoming the Garry Owen, just a point, it was always The Garry Owen, it changed it's name to The Brum Cavern in th 60s to cash in on the Beatles scene. I remember seeing the swinging Blue Jeans there among others.
The Brum Cavern thing didn't last long and it then reverted to the Garry Owen, an apt name really because "Garry Owen" is the official war cry of the American 7th Cavalry and in later years, before the courts closed it, the American 7th Cavalry would have been about the only ones who could keep order in there!