Wikimedi'Òc

BabbageDifferenceEngine.jpg - DrJunge

Babbage difference engine drawing.gif - Lobo

History of math3.jpg - הגמל התימני

Difference Engine Fragment 3 Babbage.jpg - DrJunge

Difference engine plate 1853.jpg - Charles Matthews

Gearwheel cut-outs for Babbages Difference Engine No 1, 1824-1832. (9660574123).jpg - File Upload Bot (Magnus Manske)

Babbage's Difference Engine (1138282187).jpg - Sentinel user

Difference Engine model from Meccano construction kit (2282605003).jpg - Sentinel user