Unique 1910/1911 Vintage Pocket Notebook-Medical Advise unused

This unused pocket notebook contains Dr. Treible’s medical advice on diseases of the sexual organs, impotence, etc.–an extended sales pitch for his National Medical Institute at Philadelphia, featuring “treatment by correspondence” and testimonials for the medicines produced “in our medical laboratory. Measures 5″ x 3”. Contains 46 pages. Some pages are dog eared, but no riding on any page and is in good shape. Please see pictures.