The cover is moderately soiled and heavily worn. A lot of wear and moderate abrasions on the cover. Cover corners lightly curled and moderately worn. The spine cover is worn and rubbed, with a repair of a tear at the top and something shiny at the bottom, maybe library info removal. The gold lettering is probably 80-90% missing. The first section of pages is pulled loose with glue and taped repairs. Old library paper pulled off of inside front cover pages leaving behind a small area with glued down parts or torn off surface. Could be pages missing anywhere throughout but really the pages all seem there and in pretty good shape. there is some rippling to some f the inner pages but I think that is a storage issue, possibly just uneven flat storage and a little bending.
From the beginning, through the earliest of airplanes. Balloons, dirigibles, early history.