Can anyone help with images of the oil cooler on the 109F1/2 and 4 non tropical please?

[Mysticpuma]

Hello chaps.
I have a friend creating a 3D model.of the 109 F/F2 and F4 and he is having trouble finding detailed images of the Oil Cooler.
He is looking for detailed construction drawings or close pictures of the early flat oil cooler and small air intake variant of the F-1, F-2 and the first (not tropical) F-4 variants?
I wonder if any of you may be able to help? I appreciate that if these images are in your private collections you may not wish to post them publicly so if you want to send me a Pm that is fine (and of-course just as appreciated)

Thanks for any help and assistance, cheers, Neil