'"Pair of Interrupted Mail Covers, Feb 15 1943 addressed to U.S. APO 640 carried on Pan Am Clipper which went down, purple ""Damaged by Sea Water"" struck at bottom, readdressed to Lancashire England, second is from US Army ''24 BPO'' in Austria with well struck purple ""Abandoned Mail Found in Area Formerly Occupied by 83rd Inf. Div."" a very unusual pair, Very Fine."' (Image)