If you go to
Air-Britain : Photographic Images Collection and search on Navion you will find 149 pictures, including some of the following European based Navions (N2548T, N3864, D-EFYX, D-EINB, D-EING, SP-KPP, HB-ESO and SE-FUR) and the long departed only UK registered Twin Navion, G-ARIT
G-APDK