Deutsch: Zeichnung der Difference Engine No.1 aus dem Jahr 1853. Gebaut nach Entwürfen von Georg Scheutz und Edvard Scheutz mit der Unterstützung von Johan Wilhelm Bergström.
English: Drawing of the Difference Engine No. 1 designed by Pehr Georg Scheutz and his Sohn Edvard Scheutz from 1843 onward. The machine was completed in 1853 conjunction with Johan Wilhelm Bergström.
Public domain - Bird died 1854 and Brooke died 1879
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{{Information |Description={{en|1=Drawing of the mechanical calculating machine designed by Wikipedia:Pehr Georg Scheutz in 1843 and completed in 1853.}} |Source=Downloaded August 25, 2008 from [http://books.google.com/books?id=Qvk4AAAAMAAJ&pg=PA121