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For drawing I used paper furnished by the publishers. It was formerly full sheets of two-ply Strathmore medium rough. In later years, the company imported paper from West Germany - not quite as good as the Strath, but fairly easy to ink on with a #356 Esterbrook pen. I roughed the art directly onto the paper with a Scripto light blue pencil, inked the characters, then turned the page over to my wife, who inked the dialog, backgrounds, and brushed in the solid blacks. [...] The ink I used was black India. Brush sizes were from 000 to #3.