This above picture shows the former Queen Elizabeth Hospital for Children on Hackney Road and the corner of Goldsmiths Row. This is on the left-hand side. Hackney City Farm site is next to the hospital, across Goldsmiths Row. The photograph was probably a postcard.
Many small businesses from the past are listed in Post Office directories. You can find some of these at Hackney Archives.
Thanks to Hackney Archives for these photographs.