National Geographic : 1938 Oct
TRESS THAT IS IN RESTFUL COMFORT To those who regard a mattress as simply a casual part of their bed, it may seem that we carry idealism a bit too far in the making of Spring Air Mattresses. But we assure you that our point of view is essential to the making of a mattress that is supremely comfortable. Even this is not enough-Spring Air's scientific Karr Spring Con struction has the extra qualities that permit a definite long-time Guarantee of undiminished satisfac tion. Spring-Air is "tops" among all mattresses - the safest, most gratifying investment you can make. PHOTO BYC. D. KARR,HOLLANO. MICHIGAN, COPYRIGHT 1938 You may have a 9 x 12-inch reproduction of the above picture, suitablefor framing and without advertising, by sending only 10 cents in coin or stamps to cover the cost of handling, to Spring-Air, Holland, Michigan. SPRING-AIR General Offices: HOLLAND, MICHIGAN Canadian Offices: SPRING-AIR, 41 Spruce St., Toronto, Ont. 50 Divisions in U.S. and Canada THERE ARE TWO MODERN TYPES Lookfor the identifyingSpring-AirLabel, s well as the KarrGuar. antee Labelwhich assures a 5-Io-20-yearperiod(depending upon the model) of undiminished satisfaction.Choose either the easy-to-handle Outer-Spring type, or the popular Inner-Spring style; latest models are now on displayat better stores everywhere-$24.50 to $49.50. Sprtng-Airproductstandardsarespecinedand,throughinspection,maintainedby the licensor CharlesKarrCompany,Holland.Michigan,manufacturerof thespringelementsusedin completedSpring-Airproduct. "Mention the Geographic-It identifies you."