The Fourth Side of The Triangle by Ellery Queen
1965. 183 pages. Yellow pictorial dust jacket over red cloth. Pages are lightly tanned and thumbed at the edges, with light foxing. Binding has remained firm. Corners are dogeared in places. Boards are a little rub worn with slight shelf wear to corners, spine and edges. Corners are a little bumped and spine ends are a mildly crushed. Tanning to spine and edges. Unclipped jacket has light edge wear with minor tears and chipping. Mild rubbing and marking. Tanning to spine and edges. Protected by plastic wrapper.