Aircraft Manufacture & Reports.- Folland Fiona 8-seater Civil Aircraft , number 18 of 20 copies, 1946 [with] Folland 6-8 seater Civil Aircraft , number 11 of 20 copies, 1947 ; full specifications, folding dyeline drawings, performance charts, limited-circulation blue folders with Folland logos, Folland Aircraft Ltd ; Concordia: Technical Specification [for this] Twin-engined medium-light aircraft, comprehensive description with pull-out line drawings, Cunliffe-Owen Aircraft Ltd, 1947; A W 27 Aircraft: Imperial Ensign - General Description and notes . card folder, Air Pilots Training Ltd, n.d. [1938]; folio , with others similar (60)