10" x 6 1/2", 32 glossy pages. Old reproduction from a company we bought. Model 21 catalog Shows barrel construction, stock instruction, Single trigger, vent rib, ejector. All the custom grade engraving 1-#6. Field gun, magnum gun. assembly of the gun. Olin era. 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.