Richard Penlake (author), 1910 (ca), Book cover for Roger Penlake "How to Colour Photographs & Lantern Slides by Aniline Dyes, Water, and Oil Colours, Crystoleum, and Other Processes", (London: Hazell, Watson & Viney, Ltd, ca. 1910), Book cover, Private collection of Rob Oechsle, LL/39726