Cadman synthetic

Hi all, I wanted to know if anyone has heard of, or know about, or even own one of these brushes.

I owned a Mervyn Cadman synthetic in a stubby handle - approx. same time frame as the Guinness handles. New to brushes but recall nice quality and feel. I wish I had the brush now.

He later changed to the tuxedo knots. I have a 24 and 30mm - favorite and most used brushes.