Photograph - Schumacher Mill Furnishing Works; 'Heavy Duty Twin-Screw Packer'; Port Melbourne; Victoria; 1946; Black and white image depicting three heavy duty twin-screw packing machines. It is part of a collection of photographs and marked printer's copy used in the preparation of trade literature promoting products manufactured by the Schumacher Mill Furnishing Works Pty Ltd. The items were originally housed in a wooden filing drawer