Their glass plates of P48 airplane in air, Los Angeles, Calif., 1941

18 photographs (prints) showing a P48 (also known as V-48 or Model-48) airplane flying, copied in Los Angeles, Calif., 1941. "Subject: Their glass plates of P48 airplane in air." "Client: Vultee Aircraft Corp[oration], Mr. Mehran; 4/30/[19]41 neg[ative]s sent to Donahue; 8/16 neg[ative]s returned to us; [crossed out] These negatives are in a box, see Harry; contact prints enclosed; Original Print Order: 2 ea[ch; Size: 8x10; Finish: gl[ossy]; Mount: (1 of ea[ch] linen at 8" [inches]); 18 @ 50 cents, 18 @ 60 cents); Year: 1941; Job: 13-27-192" -- on envelope front. "Charge only for prints. Negatives are their property. [signed] He[rb Cross?]" -- on envelope back.