The Carborundum print :
a circular describing a new process for print makers suitable for black and white or color, with instructions on the preparation of the ground and method of printing.
Washington, D.C. : Federal Works Agency, Work Projects Administration, Division of Professional and Service Projects, 
Etching > Etching / Technique.
"September 10, 1940."
11 leaves, 5 leaves of plates :
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|Full viewno.5||University of Iowa|