I believe this is one we have never encountered, and a first for the Db.. 1939 by case and movement. Ribbed ends and engraved sides. Appears by referenced 1941 ad to be an American Eagle "F" on the original band
Shows heavy wear to case back and high points, but polished up pretty nice. Wear on band matches the watch. Keeps time and has a nice engraving on the back. Presented to CRG on 12/04/39. Listed online for sale with blurry dark auction ad photos ....Apparently nobody was watching.....$21.50.