Concept
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Created by Boundless
The Framers of the Constitution
Framers of the Constitution Stamp (1937)
US Postage Stamp depicting delegates at the signing of the US Constitution.
Source
Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:
"Constitution Sesquicentennial 1937 Issue-3c."
http://en.wikipedia.org/wiki/File:Constitution_Sesquicentennial_1937_Issue-3c.jpg
Wikipedia
Public domain.