"Camouflaged 327-ft. U.S. Coast Guard Cutter DUANE (WPG-33) ploughs heavy seas in search of Nazi undersea marauders to protect a convoy of supply ships crossing the North Atlantic to the Mediterranean war zone. She is seen here from the deck of a sister ship (in the foreground), the Coast Guard Cutter SPENCER, which also was on anti-submarine patrol and convoy escort duty." CREDIT - OFFICIAL U.S. COAST GUARD PHOTO (Rel. No. 3487)