My partner's grandfather is shown to occupy premises in Bethnal Green in
1921 as an electrical engineer. There is no family left who can explain
what he did but there was mention in the whispers and memories of
something to do with electricity so it makes some sense - and I cannot
help but wonder what the term meant then. Can't imagine that any sort of
electrical installer would need any form of shop premises, the area was
very poor so unlikely to attract many retail customers, what is left?
Selling lamp bulbs? Charging radio batteries? Fixing appliances?

--
Rod