Without a suitable old map of Birmingham, this is only guesswork Tinpot but I believe that 46 Coventry road which technically runs from Birmingham to Coventry would have been in Small Heath near Digbeth near the numbering start of the road. Even as a child, the house numbers already ran into the 1000s not far beyond Yardley. Forty six might have come under the auspices of Aston as it was the registration district for births, deaths and marriages for some people living in Small Heath in at least Edwardian times even though it was not Aston per se. The road layout in that area has been changed beyond recognition I suspect. Green lane Small Heath would have been very close by. Let's hope that someone has an old OS map.