Late 1930's Remington Model 341 Sportmaster brochure,3-1/2" x 6-3/8" closed and fully open is 7-1/16" x 12-5/8".The cover and first fold opened are shown.When fully open an 11" image of the rifle spans the pages with 4 features pictured with descriptions and specs.The back cover pictures a large Kleanbore .22 cartridge with features highlighted.It is marked "Form No. 605 on the back cover. Excellent Condition