7 inch Aldis Butcher lens

[Nas]

Does anyone have any info on a 7 inch f3.4 Aldis Butcher lens? The internet says it's a Cooke triplet design. Originally designed for 1/4 plate it covers 5x4. I fitted it to my Super D in a homemade lens board. Can't reach infinity, rear element protrudes too far. Furthest is around 2 metres. This is a test wide open. Foma 100 (expired 2022), ISO 50, developed in Rodinal 1+50.