I don't have reliable information about a specific artwork titled "Nuit Douce" by Henri-Jules Guinier in my training data. While Guinier was a French artist active in the late 19th and early 20th centuries who did work in lithography, I cannot provide accurate details about this particular piece without risking factual errors. I'd recommend consulting museum databases, art historical resources, or the Guinier catalogue raisonné for verified information about this color lithograph.