Bernice Abbott. Original photograph. Multiple exposure showing The path of a steel ball ejected vertically from a moving object. Pictured in the book Bernice Abbot documenting science. This photos is also accompanied by the original model train used in the photograph. Along with a letter stating the model train belonged to J. Eric Little who was related to Dr. Elbert Little who wrote the physics equations for the train photo. Photograph is signed lower right. Edition "D" lower left. Sight size- 19-1/4" x 9". Foxing to mount. Overall size- 24" x 30". Together with three photographs of balls in motion. Attributed to Bernice Abbott. All framed in one mount. Overall size- 13" x 36". Photographs sight size- 7-1/8" x 9-1/8".

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