Chain drive, Su Song's book of 1092.

• Contributor: Zip Lexing / Alamy Stock Photo
• Image ID: W2F3GT
• File size: 5.7 MB (133.1 KB Compressed download)
• Releases: Model - no | Property - no
• Dimensions: 1021 x 1958 px | 17.3 x 33.2 cm | 6.8 x 13.1 inches | 150dpi
• Date taken: 8 August 2008

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This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.

This image could have imperfections as it’s either historical or reportage.

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