Photograph - Hecla Electrics Pty Ltd; Factory Workers Assembling Water Heaters; circa 1920; Photograph of male factory workers assembling water or vegetable boilers; possibly at the Little Collins Street or Little Bourke Street premises in Melbourne. This photograph is from an album containing 255 black and white photographs depicting electrical appliances; showroom displays; factory interiors and advertising material relating to Hecla Electrics Pty Ltd. It is part of the Hecla