Quote Originally Posted by Oldengaerde View Post
Yup, many Eschers combine different shades in one stone. Especially the YG ones often have a darker and slightly bluer reverse. On this side, tiny dark spots are not unusual.

Barber's Delight was a special size in the best quality according to this Pike catalogue:

I have got a Barber's Delight Y/G Escher. Looking at the above table it looks like I have the Rolls Royce amongst Eschers