Hello I have these two lens elements that appear to be mismatched elements from super angulon type lenses.
Combined, they make a lens that is about 75mm and seems to cover 4x5.
I am sure that the larger element in front, which is labeled made in japan, is actually a rear element for a 120mm f8 nikkor. It appears multi-coated.
I am not as sure about the smaller element, which is not labeled. It does not match my 90mm super angulon but is about the same same size. It has more of a curve to the outer lens surface. It appears to be single coated.
You can have either element for $50 each or buy moth for $100 and I will throw in the polaroid copal #0 shutter and a generic linhof board or a 4x4 wooden board if you ask.