Bell & Howell 3 inch F2 incre-lite

Bell & Howell 3'/f2 Incra-Lite

It's appearance remind me of Taylor Hobson 16mm projector series. I thought it's TTH lens. But it turned out it's made in USA.
16mm projector lenses usually have same character, most of them have swirly OOF and sharp at center only. However, there's exception that some of them can make sharp image at edges, well of course not as sharp as at center. My A Seibert Wetzlar 75/1,6 is one of them. I was surprised to know that this lens is one of the few one.
here's edge sharpness sample