Yes, it is the keep left sign that bothers me with my suggestion. But I only remember the Spring Hill library junction up until 1954, after which major changes started to take place.
I've just had a look in the thread below but the church has a wall round the churchyard whereas the building where the bus was is directly on the road ...The tower of Christ Church, Sparkbrook looks remarkably similar to the one in the background, I'm not saying that this building is a church but it looks like there was a church nearby. The church was demolished around 2005. John
The building to the right of the driver and about level with the upper deck, seems to show an unusual set of 3 windows that cascade downwards. I can't find this feature on Spring Hill Library