I'm curious as well. this looks a little like a paper negative. I like the diffuse areas. perhaps it's just a plastic lens. I do quite like this image. please tell us more.
It's 35mm tri-x shot through a Nikon FM2N with a 50mm lens and processed normally. I then placed two sheets of tracing paper directly on top of the photographic paper in the easel. Exposed as I normally would and developed in standard developer. Thanks for the kind remarks.