"DGA-12" . . . . "C-70 Nightingale" . . . "Howard DGA-8" . . . "Howard DGA-8, 9, 11 & 12" . . . . . . . . "Howard DGA-11" . . "Howard DGA-8" . "Howard DGA-12" . . "Howard C-70A" . . . . "DGA-8" . "31" . . "DGA-11" . "DGA-9" .