The 1866 pic even makes it look like the road layout was changed as Trenchard looks to divert to the left in the old pic.
I wonder if the B&W was taken as a record of the old buildings before they were all razed to the ground, 'cos if you look at this side-by-side map from ~1873 - 1888, the old layout and names are already gone.
Much better then, as most things.
Christmas steps is one of the older bits of Bristol.
19 Christmas Steps
Is that Mary Ann Hobbs in her early days?
Batusi!
I’ve been to Rye many times but never seen that place. Is it down near the station?
Just round the back apparently
I’ve spotted Eric Burden, … , Roy Wood, Jimi, Noel Redding, … , John Mayall, Steve Winwood, … , … .
Ringo’s hand action looks a bit suspect …
No it doesn’t, it looks entirely appropriate.
If you don’t know the band The Koobas you will be a bit stuck
Answer below
Zurich-1968 - Eric Burdon , Stu Leathwood (The Koobas), Keith Ellis (The Koobas), Roy Wood (The Move), Jimi Hendrix, Noel Redding , Carl Wayne (The Move), John Mayall , Steve Winwood (Traffic), Trevor Burton (The Move), Roy Morris (The Koobas)
Is that the earliest AA group photo?
Nup. Not heard of them.
Should have recognised Trevor Burton though 
Koobas were excellent. They straddled freakbeat to psych 1966. (Think Mods on speed avac acid)
Had to reverse image search it, as more unknowns than known to me -
“1968 - Zürich, Switzerland. From left: Eric Burdon, Stu Leathwood, Keith Ellis, Roy Wood, Jimi Hendrix, Noel Redding, Carl Wayne, John Mayall, Steve Winwood, Trevor Burton and Roy Morris”
