Elementary Trigonometry by H S Hall & S R Knight
1955. Reprint. 415 pages. No dust jacket. Red cloth. Pages have slight foxing, tanning and minor thumbing. Foxing more noticeable towards the start and end of the book and on text block edges. Bookseller's stamp to front pastedown. Slight smudging to margins of p56. Boards have some moderate edge wear, with slight bumping to corners and minor bumping to spine ends. Slight brown stains.