Vintage, 1988 original "New Old Stock", dust jacket / cover for hard or leather bound book HELMETS OF THE DEEP, by Leon G Lyons.  Leon is a long time, major collector of diving helmets and equipment.  Cover your book, or refresh your old cover. Repurpose as a wall hanging, put under a glass top table, etc.  Quality weight, gloss paper.  34 1/2" x 10 1/4".  Thank you for looking.