Air Sarnia had Islander G-UERN and Trislanders G-BEFP and G-SARN. Both Trislanders were white with blue lines down the side (not the same shade of blue). Going back further you had Alderney Air Ferries with 3 Islanders followed by Metropolitan Airlines with Twin Otters and then Air Camelot/Aviation West. After that was Le Cocq's Airlink which became Rockhopper and then more recently Blue Islands.