How a Claude image is often thought to look: monochrome. It was artists who created monochrome tonal studies using the Claude and these gave rise to the misapprehension.
In fact, the image is polychrome but without dazzle. Things can be observed without screwing up the eyes.
The shapes of clouds can be made out more clearly. This is a view over Edinburgh to Fife from the top of Calton Hill.
The stone telescope shaped monument commemorating Nelson and Trafalgar. Calton Hill, Edinburgh.
The memorial to the philosopher Dugald Stewart is at the end of this walk.
I suspect the pink silk lining was to rest the eye from the effect of afterimages from staring at greenery and blues. I don't know that as a fact. Claudes, out of fashion long ago, were discarded and forgotten.