Marrickville Council recently posted this picture to their facebook page. It shows the opening of the extension to the Dulwich Hill Boy Scouts Hall in 1924. Through Trove I was able to find an interesting recount of the events of the day that connect to this wonderful photograph.
The Sydney Morning Herald (NSW : 1842 – 1954), Monday 16 June 1924, page 10
Marrickville Heritage Society 