8 1/2" x 5", 16 glossy pages.Old reproduction from a company we bought. From the 1860's Shows a picture of the factory. All of the hammer guns. Letters of recommendation. Very informative. Limited quantity available. Perfect companion for your gun. Provides superior reference material. Also would make a great gift.  These are actual catalogs, not some inexpensive printer copy that many are selling. This catalog is almost indistinguishable from the original.