| Description | Two copies of "The Application of Composite Photography to Handwriting and Especially to Signatures" by Persifor Frazer, read before the American Philosophical Society, 16 January 1886, reprinted from Proceedings of the American Philosophical Society, XXIII, 123. One copy of "A New Application of the Principle of Composite Photography to the Identification of Handwriting" by Persifor Frazer, reprinted from the Journal of the Franklin Institute, Feb 1886. |