here we have 4 vintage aviation publications. The smallest was published by the War Department in April, 1942. It is a "Technical Manual, Elementary Weather For Pilot Trainees". It measures 5.5 by 8.5 inches, and is in decent, but used condition. The other 3 booklets measure about 8 by 10 inches, and were published by the Federal Aviation Agency. 2 are dated 1962, and the other is 1963. These 3 are all in excellent, unmarked, unused condition. None of the 4 have any mold, stains, or musty odors.