Hi
I have seen two signature that were confirmed as M Harris, and apparently he sometimes did not sign in full, my local auction house feel it is M Harris as the distinctive M with the curve off of it is one of the known traits of his signature. My weight which is one with knob on top, has the same M, and there is the joined up rris at the end which again is distinctive of his signature.. I have owned it for some time now and when I purchaed it, it was from a lady who had been to Malta in the early 80,s and purchased it from a small shop there...
This is a difficult one as there are so few full signature to rely on.
Regards
woodie