Sleuths of The Air by Percy F. Westerman
192 pages. No dust jacket. Blue cloth with black lettering. Moderate tanning, with light foxing and marking to pages. Cracks to guttering throughout, with exposed netting. Heavy tanning and marking to text block edges. Boards have moderate shelf wear, with rubbing and marking. Moderate bumping to corners and crushing to spine ends. Book has noticeable forward lean.