Michael Harris did not sign many pieces Greg!
He was always very reluctant to do so. Some of the bits for the American market were signed, as they were a bit more insistent about it. A fiar few Japanese Globe vases were signed - this was, I beliveve, a small experiment to see if it made them sell better.
I am of the opinion that the bits I have with his script on the base are his work. I would have that opinion of these bits without his script on the base too.
ok, pics. All of these are very early pieces.
Two MH scripts, one on an early inside-out pot, the other one an early ink pot (the long "a" one) (both on blue/green glass)
Two Dobson scripts, both on early ink pots. (both on amethyst glass)