It is a portrait lens.
There is far more info here!
https://www.largeformatphotography.i...ll-models-quot
It is to be compared with other “non perfect/pictorial” lenses , Spencer Port-land, Plasticca from the early 20th C.
Utterly worthless, of course, you will never get a sharp image from that piece of garbage. I suggest you find someone here who is willing to take it off your hands
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