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Proportion, or, The geometric principle of beauty, analysed : Hay, D. R. (David Ramsay), 1798-1866 : Free Download, Borrow, and Streaming : Internet Archive
Proportion, or, The geometric principle of beauty, analysed : Hay, D. R. (David Ramsay), 1798-1866 : Free Download, Borrow, and Streaming : Internet Archive
Geometrical drawing; a collection of plates for practical use in elementary mechanical drawing : Schraidt, Ferdninad Friedrich Hans, 1880- : Free Download, Borrow, and Streaming : Internet Archive