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In this article about wool sales in 1952, Australia’s marketing methods are described as medieval. T. G. Hunter, a Professor of Chemical Engineering at Sydney University, is quoted advising that wool should be marketed in a few uniform grades…

This article from the Canberra Times discusses changing methods of sculpting designs into stone. It distinguishes between recent methods (in 1930) in which designs were modelled onto clay and then copied onto stone or marble by masons, and older…