Http://twitpic.com/ih18 - NIST historical standards of measurement, 19th and 20th century
NIST historical standards of measurement, 19th and 20th centuryNIST historical standards of measurement, 19th and 20th centurytwitpic.com
Posted on Twitter over 17 years ago and archived here at /twitter/2008/10/26/tweet-977774322/ in the Twitter and Facebook collections.
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