Former Metropolitan Police detective Robert Fabian (aka Fabian Of The Yard) published a revelatory exposé of Soho vice in 1954, titled London After Dark. Among much about prostitution, ‘dope’, ‘perverts’, black magic and general crime, all viewed via a full set of 1950s morals, are these atmospheric (uncredited) photos.
The Intrepid Fox instantly positions this as the corner of Peter Street and Wardour Street.
London After Dark by Robert Fabian was published by The Naldrett Press in 1954. A second hand copy will set you back about £10.