Photos: PBY-3
BuNo 0854?
(The "4" is pretty clear; most of a "5" is distuingishable; the "8" is only an impression but can be nothing else if the second digit is correct.)
5-P-1
1937-Jul-30

Caption:
Official U.S. Navy photograph
No:3040
Date:7-30-37
Consolidated PBY-3 patrol bombing plane.

(Photo from the R.L.Lawson collection, courtesy of the Nat'l Museum of Naval Aviation)