Photograph - Hecla Electrics Pty Ltd; Bread Making Oven in factory interior; 1930s; Black and white photograph of Hecla bread making oven; circa 1934; in factory with man on left hand side turning knob. 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 collection of photographs; documents; products;