Darryl,
This one was a 10 inch Taylor Taylor Hobson. I say was, because I did sell it on this board, because I have another one. Look up the TTH "Rapid View Portrait", "Rapid View" (same lens, just the iris only goes down to f11) or later when Cooke remade them because of demand it was called the "Portrait Achromat". Dan's article here, or there is info on the Cooke site. It was a very famous lens, generations before the Veritos and such. It was probably one of the first true Soft Focus lenses, purpose built.

Here is one of mine: