Anthony Frattaroli

I've recently come across a Super 16 lens I've been unable to find information on, and I wonder if any of you folks might know something about it. It's a Taylor Hobson 10-30 T1.5 lens (marked "Cooke 3X10" on the front ring). It's a fairly large lens with a PL mount, currently sporting an Aaton adapter Google has come up empty on this one, so I have no idea what sort of history or reputation these lenses have got. Worth using? Worth selling?