The description of this photo implies that the colour is called ‘blue marble’, and it also appears to show an M1 with the same colourway? Anyone ever seen one of those? Hopefully this at least helps anyone else who’s trying to track one down.
I’ve also found an instance of one being sold in this post:
Unfortunately, the photos are all dead; so I guess I’ve still never ‘seen’ one in the wild, so to speak.
