Neat liitle 24-page advertising booklet by the Hump Hairpin Mfg. Co. of Chicago: "The Secret of Beautiful Hair." Illustrated and with many ads for the company's products. Topics include "Changing Styles," "Your Comb and Brush," "Sunlight for Scalp Health," "What to do for Falling Hair," "Dandruff - Its Cause and Treatment," etc.. Products include "Hold Bobs" (Bobby Pins), Curlers, Waveset Pins and Wave Clips, Hair Pins, etc." Nice condition.