The Making of the Glencairn Methuselah Window: Page 15

Method of making drawings
First make a drawing on regular drawing paper - in charcoal and fixitize it with shellac dissolved in alcohol.

This I colored with Binney & Smith wax pencils <"Rembrandt" crossed out> "Rubens" No 24
These are the best

2nd I put shiny transparent tracing color over the colored drawing <sic “and”> refined the drawing

3rd I took a piece of the same shiny tracing paper and rubbed lead pencil over it (Faber 2B)

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