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Title: Earliest etchings without ground (before 1852) [Go to resource]
Description: Earliest etchings without ground (before 1852). Experimental copper plate, 5" x 3/4" with two original glass positives. License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Temporal: 1852 Source: Science Museum Identifier: 1937-404 Go to resource More Like this...
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