The Oscillator At Work by John F.Rider
1944. 10th Printing. 243 pages. Blue and yellow dust jacket over red cloth. Black and white illustrations throughout. Binding remains firm. Pages and illustrations have light tanning and foxing throughout. Previous owner's inscriptions and sticker to front pastedown and endpaper. Sticker to front pastedown. Boards have light shelf-wear with corner bumping. Light tanning to spine and edges with crushing to spine ends. Unclipped jacket has moderate edgewear with chips, tears, and creasing. Small areas of loss to spine ends. Foxing overall.