Simplified Method Of Tracing Rays Through Any Optical System Of Lenses, Prisms, And Mirrors by Silberstein, L.
1918. 37 pages. No dust jacket. Red cloth. Black and white diagrams throughout. Pages and diagrams are moderately tanned and foxed throughout with thumb-marking present. Pen inscription to front endpaper. Boards have moderate shelf-wear with bumping to corners and rubbing to surfaces. Light tanning to spine. Moderate fraying to spine ends.