Cooke Series II 4.1 Inch Eq Focus????

[Kristoff]

Picked this lens up on a Contessa Sonnet.
Cooke Series II 4.1 Inch Eq Focus 3 1/4*3 1/4.
Maybe not strictly large format? But I thought maybe this would be the best place to ask?
Any ideas, cant find anything on the web about it!
B & L shutter looks like it belongs. but I assume it doesnt?

[MartyNL]

At 105mm, I very much doubt it will cover 4x5".

[Dan Fromm]

It is a triplet whose maker - Taylor, Taylor & Hobson - thought it could be used on formats up to 3.25" square.

See https://cookeoptics.com/compendium/