And I am making this harder for myself by deliberately not asking Andy for any more information.
Instead in the quiet moments I shall regularly revisit the picture and see what the records reveal.
So that will open up a trawl of the census returns and street directories and of course the telephone directories and maps of the period.
The local archive centre might just have some records on the company with pictures and even details of the people who worked for them.
And then there is that simple wild card where you type in the name on Google and wait to see what pops up.
Now for someone who does not know east London here is an anchor from which to move out and look for the other stores or branches of Thomas E Carwardine & Co. Ltd.
It may be that they only had the one premises but they were operating at least 39 vehicles, some of which would be motor vans and others perhaps horse drawn or hand pulled carts and that is an impressive fleet.
And I am fascinated by the hand painted sign. All things Egyptian had been given a real boost by the discovery of Tutankhamun's tomb in 1922.
At which point I recognise that this will be read by many who mutter that in looking into the story of an east London firm I am well out of my usual haunts.
But not so and especially because the methodology in picking through the clues can be used any where, and that seems a sensible point to stop for the time being.
Picture; from the collection of Andy Robertson
*Pub History in the UK, http://pubhistory.co.uk/streets/KingslandRoadEast1.shtml