4 - Zon-o-phone REPRODUCTION Crank Phonograph Catalogs Zonophone        
    "The New Zon-o-phone" - approx 5-9/16" x 3-7/16" - 24 pages + covers    
        Nice card-stock covers w/ glossy paper pages
    "1900 The New Type Zon=o=phones" - approx 3-1/2" x 6" - 4 pages TOTAL    
        Pictures a glass-sided Type A, Type B and Type C
    "The Zon-o-phone Is the Best Talking Machine" - 3-5/16" x 6-1/8" - 16 pages + covers    
        Pictures a glass-sided Type A, Types B, C and D as well as Sound Boxes, Carrying Case, Record File and Needle Box
    "New Tapering Arm Zon-o-phones Are the Best" - approx 3-7/16 x 6" - 4-section, double-sided fold-out    
        Pictures 5 - rear-mount phonographs
    All four in Excellent condition!