Yep, they keep getting better every time. Thanks Mike for that wonderful pic of a 44 tram and an ADC double-decker bus. At least it had pneumatic tyres by then, but it seems to have been suffering from dehydration. It must have been on the 1A route, as The Outer Circle route 11 and its early partner the 10 were run by single deck diddybuses, as far as I know until traffic built up, which I imagine was not before 1930. Shortly after that the rather crude roundabout and other islands (beloved of the then City Engineer and Surveyor [Sir] Herbert Humphries) were laid out.
The pic below shows what it was like after the 'improvements' were finished in 1932. Not a postcard, I'm afraid. The tram, incidentally, was either 451 or 452, built in 1903 at Kyotts Lake Road, Sparkhill. They outlasted the Acocks Green, and ended their working lives on the Perry Barr route on the last day of 1949.
Peter