I don't know if Muffs were made for MkIIs (how were they carried
about by Streetly/Mellotronics?), I've never seen one. I have a Muff
for my M300 though but it's the only one I've seen.
John
M300#005
Brian Kehew has a muff cover (more like a padded piano cover) for his white MkII in a hideous green colour.
Frank Samagaio
MkII #134 / M400 #908