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File:Libra pondo abbreviation newton.jpg

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English: A stylized version of the abbreviation lb, which was short for the word "libra" in the Roman weight libra pondo. The origins of the octothorpe, or number sign or pound sign or hash.
Date 1600s
date QS:P,+1600-00-00T00:00:00Z/8
Source Roy G. Neville Historical Chemical Library, CHF
Author Isaac Newton


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This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1927.


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current06:34, 5 May 2016Thumbnail for version as of 06:34, 5 May 20162,448 × 1,681 (1.42 MB)EggsInMyPocketsUser created page with UploadWizard
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