File:Osborne Heard.jpg: Revision history

31 January 2019

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15 December 2018

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22 April 2016

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17 July 2015

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8 March 2015

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3 August 2014

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31 March 2012

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24 September 2011

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• curprev 09:2109:21, 24 September 2011‎ S8600021 talk contribs‎ 317 bytes +317‎ ==Osborne O. Heard== Osborne O. Heard (1891–1983) produced model reconstructions for the Carnegie Institute. Models were mainly by a lost-wax process and are said to be more detailed than the Zieglers’ models. http://www.hps.cam.ac.uk/visibleembryos