No edition remarks. Unpaginated. No dust jacket. Thick card slipcase containing large square instrument. Booklet outlining regulations for preventing collisions at sea is also enclosed. Instructions for use of protractor are on outside of slipcase. Slipcase fastening is missing. Protractor is notably rubbed and marked with some surface scratches. Leaflet pages have slight foxing, tanning and minor thumbing. Some creasing and marking. Slipcase has heavy marks, very bumped corners, heavy cracking and splitting to joins and heavy water stains and marks. Some tape repairs to edges also.