Black and white engraved plate depicting six designs for bridges. A scale bar can be seen beneath the bridge labelled '5', with an additional scale bar to the lower centre. Also including a small plan relating to the bridge labelled '3'. Hefte 20. Plate 4 of 9. From the publication 'Ideenmagazin. Vol II' by Johann Gotfried Grohmann
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Ideenmagazin von Johann Gottfried Grohmann ... Herausgegeben