Robert Lewis examining a photoengraving mask by microscope

Robert Lewis using a microscope to examine a photoengraving mask., Credit Line: AIP Emilio Segrè Visual Archives
Abstract/Description: Robert Lewis using a microscope to examine a photoengraving mask.
Subject(s): Profile portraits
Equipment and supplies
Lewis, Robert E., 1917-
Credit Line: AIP Emilio Segrè Visual Archives
Catalog ID: Lewis Robert F1