Point of those ads generally is that people were looking intentionally at them for a plumber, sparkie, piano tuner, gramophone polisher, used tap shoes or what

Point of those ads generally is that people were looking intentionally at them for a plumber, sparkie, piano tuner, gramophone polisher, used tap shoes or what ever else newspapers used to advertise. In fact many people only bought the paper on ad day. Whole different kettle of fish.