N766M Curtiss-Wright Robin J-1 Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin Air-Britain J M Gradidge Collection - 1982*
N766M Curtiss-Wright Robin C-1 Private Oshkosh - Wittman Regional (OSH / KOSH), USA - Wisconsin Air-Britain J M Gradidge Collection - 1982*
