File:Rubber impression.jpg

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English: Rubber impressions were used to make moulds of stone pieces from Six Logan Circle, Washington, D.C. A rubber impression made from this latex casting mould then provided the mould into which the concrete was poured to create the new pre-cast units
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Source http://www.nps.gov/hps/tps/technotes/PTN23/Work_Description.htm
Author James Smith
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Public domain This image or media file contains material based on a work of a National Park Service employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the NPS website and NPS copyright policy for more information.

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current15:56, 14 April 2010Thumbnail for version as of 15:56, 14 April 2010699 × 993 (354 KB)Preservapedia (talk | contribs){{Information |Description={{en|1=A rubber impression made from this latex casting mold then provided the mold into which the concrete was poured to create the new pre-cast units}} |Source=http://www.nps.gov/hps/tps/technotes/PTN23/Work_Description.htm |A

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