File:Libra pondo abbreviation newton.jpg
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Summary
| Description |
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 |
| Source | Roy G. Neville Historical Chemical Library, CHF |
| Author | Isaac Newton |
Licensing
|
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. 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, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:34, 5 May 2016 | | 2,448 × 1,681 (1.42 MB) | EggsInMyPockets | User created page with UploadWizard |
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