Delicacies weighed and packed in Armour's Packing-House in Chicago, showing some dubious by-products of a Chicago meat processing factory used for making cheap sausages. Exposed by Upton Sinclair in his book, 'The Jungle', the meat processing factories were seen to be guilty of using foul or diseased waste meat to make cheap products bought by the poor as well as mistreatment of workers. Date: 1906