[doctor]

:wink: Hi Gringo, the difference between sand filter on 109 E models and later 109 F,G models is in shape.E models have filter which is of angular shape, with movable front cover in one piece, and filter on F, G models - You know how it looks. I have some Bf-109 books with pictures but don't know how to post pictures to help You. If You need thode pics I can send some through your e-mail.

Regards,

DOCTOR