microscopy; The Conclusive Link is Forensic Ballistics; A catalog of microscopes, lamps, and other lab items. Enclosed inside: 3 pamphlets for other accessories, 3 photos pertaining to the fingerprint projector, a copied news article, a letter to Doepner from the manager C. W. Barton, and an essay "Scientific Criminology: How Bullets and Firearms are Matched for Identification" by Stanley F. Gorman. 9 items.; Spencer Lens Co.; Buffalo, NY; 20 leaves; DF 767