This version of Design 3D was worn by at least 42 destroyer escorts assigned to the Atlantic Fleet. The vertical colors are: dull black (BK), ocean gray (5-O) and light gray (5-L). I have not found an official Navy version of this drawing, but it must have looked like this. There probably was a drawing for this version since so many ships used it. Most of the ships in this version of Design 3D had replaced the torpedo tubes with 40mm guns, so this drawing shows that modification. The date for this drawing would have been about May 1944 since ships began appearing in this camouflage in early June. There may also have been a deck pattern that would have been deck blue and ocean gray, if no pattern, then all deck blue (20-B).
I have not seen any photograph of a ship in this camouflage showing the deck with any pattern.
Original drawing sources: NARA 80-G-000000.